Chemistry Questions and Answers July 13, 2020

Identify the type of reaction for each of the reaction observed in the lab (i.e. is the reaction a combination, a decomposition, a single displacement, a double displacement, acidbase neutralization or a combustion reaction). 1. Magnesium metal plus oxygen gas produces magnesium oxide powder 2. Iron powder plus sulfur powder in the presence of

Calculations Using the Mole Learning Goal To learn how to convert grams to moles and to use the mole to find the number of ators in a sample. The mole (abbreviated mol) is a counting unit used to simplify calculations that would otherwise involve very large numbers. The mole is equivalent to the number of carbon atoms in exactly 12g of

You dissolve a known mass of solute in a known mass of water and read the total volume. The molar mass of the solute can be determined by measuring which other quantity the density of the solution either the boiling point elevation or the density of the solution the vapor pressure of the solution either the vapor pressure or the boiling point

What is the largest school district in Texas Select one a. Houston b. San Antonio c. Dallas d. Austin,E) The flow of electrol 20. The Nernst equation can be used to calculate A) standard cell potentials from standard reduction potentials. B) the change in standard Gibbs free energy from standard cell potentials. C) cell potentials given the

Determine the major organic product for the reaction scheme shown. CI 1.2 Li, Et0 2.0.5 equiv. Cul 3. CH(CH)Br If no reaction, draw the starting material Select Draw Rings More G C H CL Li Cu Erase 2 Q,Determine the major organic product for the reaction scheme shown. CI. 1.2 Li, Et0 2.0.5 equiv. Cul 3. CH3(CH)Br If no reaction, draw the starting

Question 4 (Mandatory) (1 point) Br Save Br Br Determine the following for phosphorus tribromide the correct number of regions of electron density (type the number digit, dont spell it out 3 not three etc.) the number of lone electron pairs (type the number digit, dont spell it out 3 not three etc.) the electronic geometry name (spelled correctly)

Determine the bond order for F2, F2+ and F2-. Which molecule should be the most stable?

Design a synthesis of 2ethoxy2methylpropane from 2methylpropene. Y Part 1 out of 6 Choose the best option for the immediate precursor to the target molecule. Xor D in 1 attempt left 3 B E Check my work Br C Next part

please help with 1-5

Knowns 2) 1) How many pounds of Chemical K are in the 4 drums 3) 4) 5) A pallet with 4, 55 gallon drums filled with Chemical K weighs 1880 lbs. An empty drum weighs 30 lbs. A pallet alone weighs 40 lbs. All drums must be shipped on a pallet The maximum load of a pallet is 4 drums How much does a gallon of Chemical K weigh How much does a 55 gallon

It is known that FDC food dye Yellow 5 (MM 534.37 gmol) has a Amax 426 nm, while Blue 1 (MM 792.86 gmol) has a Amax of 630 nm. You sample 3.00 mL of the kiwilimeflavored drink into a standard polystyrene (b 1.00 cm) cuvette and take an initial absorbance vs. wavelength (A vs. X) absorption spectrum with a spectrophotometer identical to that

8. K is the chemical symbol for which element

39. A student titrated a 10.0 mL sample of nitric acid with a 1.50 molL sodium hydroxide solution in the presence of an indicator. Calculate the concentration in molL of the nitric acid using the data in the following table. Trial Final burette reading (mL) Initial burette reading (mL) I 7.82 1.19 II 14.41 7.82 III 20.96 14.41

The density of water at 4.0 o C is 1.000g/mL. A studentconducted an experiment and determined that 4.70g of water occupiesa volume of 4.75mL at 4.0 o C. a. Based on the student's measurements, what is the density ofwater at this temperature?_________ g/mL (answer shouldbe in decimal form to four decimal places) b. What is the percent error

c) Benzene is one of the Toxic Air Pollutants (TAPS) found in can exhaust fumes. When a 50.00 mL aqueous sample containing a 0.05000 M benzene (molecular weight 78.11gmol) is extracted twice with 10.00 mL portions of chloroform, it is found that 1.50 x 10 moles of the original compound has been extracted into the chloroform. i. Calculate the

Define a galvanic cell and explain all of the properties of sucha cell.

How does a decrease in the temperature of a chemical reaction affect the reaction rate The reaction rate decreases. The reaction rate does not change. The reaction rate increases. How does an increase in the reactant concentration affect the reaction rate of a chemical reaction The reaction rate increases. The reaction rate decreases. The reaction

If you inject a 1.0 g sample of liquid water into a closed 1.00 liter container, some of the water will evaporate until the pressure of the water vapor, at 14.1C, is 113.2 mm Hg. How much water (in g) is in the vapor phase

Interconverting temperatures in Celsius and Fahrenheit A high fever for an adult is 101. F. Convert this temperature to degrees Celsius. Round your answer to 2 significant digits. Explanation Check X 5 U

Data Collection and Analysis Part I Data Table Mass of Cu moles Cu Part I Observations Part 1 Balanced Equation (hint use 4 moles HNO3) Part 1 Reaction Type Moles of product Part II Balanced Equation Part II Ren Type Part II moles product Part II Data Table Show all your work for any calculations Part II Observations 0.55009 0.55000 Part III

Converting cups (volume) to mass in grams usingnutritional labels. How do we read labels and convert from volumeto mass in a kitchen ? From Volume to mass Using the recipe above for the chocolate chip cookies,rewrite it again by converting all of the volume amounts into gramamounts using the information found on the nutrition labels for

Preview File Edit View Go Q Tools Window Help Nutrition Facts about 32 servings per container Serving size 1 Tbsp. (14g) Amount per serving Calories Total Fat 11g Screen Shot 20200617 at 2.43.05 AM Saturated Fat 7g Cholesterol 30mg Sodium Omg Total Carbohydrate Og Protein Og 81,796 Not a significant source of trans fat, dietary fiber, total

Metal forms one type of ion only. name of cation (metal) IONIC Metal and nonmetal name of cation (metal) Example Cal calcium iodide Metal forms more than one type of lon base name of anion (nonmetal) ide charge of cation (metal) in roman numerals in parentheses Example FeCh Inorganic Nomenclature Flow Chart MOLECULAR Nonmetals only prefix base

Include a retrosynthesis. Use the retrosynthetic arrow Write reagents for each step in the forward direction. Use theforward arrow

What is the correct formula for the precipitate produced after aqueous solutions of magnesium nitrate and sodium hydroxide are mixed Mg(NO3)2 (aq) NaOH(aq) O MgOH(s) O Na(NO3)2(s) NaNO3(s) Mg(OH)(s)

Imagine the following orbitals gradually approaching each other asindicated by the arrows so that they begin to overlap. If two electrons with opposite spins reside in the overlap region,then which of the following is the true statement? 1 B &C result in a sigma bond and A results in a pi bond A &C result in a pi bond and B results in a

Identify the type(s) of reaction for each of the following (some may require more than one answer). a) 2NH4OH (aq) CuSO4 (aq) Cu(OH)2 (s) (NH4)2SO4 (aq) b) CuSO4.5HO (s) A CuSO4 (s) 5 HO(g) c) Mg(OH)2 (s) 2 HCl(aq) MgCl2 (aq) 2 HO (1)

Assume the current equilibrium level of income is $200 billion as compared to the full-employment income level of $240 billion. If the MPC is .625, what change in aggregate expenditures is needed to achieve full employment? A decrease of $12 billion. An increase of $25 billion. An increase of $10 billion. An increase of $15 billion.

4. Identify the stereochemistry of the following compound a Also, write the IUPAC name of the compound usine Rs Configuration. Hum Br fum H 1 and 3 1 and 4 2 and 3 2 and 4 3 and 4 BY b) OH H H SIH HSi Br Br Br Br 3 2 What is the relation between compounds 1, 2, 3, and 4. (Hint types of isomers) 1 and 2

Which is a correct Lewis structure for carbonic acid, H2CO3 oH oc oH oH oH 0c oc 6H oH None are correct 0H oc 0H,Question 6 (1 point) Select the set of formal charges that fit the atoms in the following compound O 1,1,1, 2 0, 0, 1, 1 0, 1,1,1 None are correct 0, 0,1,1,Name the following molecule. To minimize confusion, I would recommend you

macan leaming Identify the characteristics of water that contribute to its unique properties. Water molecules form hydrogen bonds with one another. As water freezes, hexagonal holes are formed between the molecules. There is a strong repulsion between the water molecules. Water is less dense as a liquid than as a solid. Water molecules are polar.

The human red-blood-cell membrane is freely permeable to waterbut not at all to sucrose. The membrane forms a completely closedbag, and it is found by trial and error that adding the cells to asolution of a particular concentration of sucrose results inneither swelling nor shrinking of the cells. In a separateexperiment, the freezing point of that

What is the most correct IUPAC name for 2(1methylbutoxy)propane 1methyl1isopropoxybutane 2isopropoxypentane 1methyl4isopropoxybutane 2oxypentylpropane 2(oxymethylbutyl)propane

Convert the following volumes from the derived units to liters. 3.89 kL to liters. 0.00702 NL to liters. 12.7 cL to liters. Number 10 Number Number L L L

Convert 1.8 mgdL to micrograms per milliliter. (Answer must be numeric round to the nearest whole number) Answer 1 18 mcgmL Answers 1 1 10 QUESTIONS 1 18 VERSION 2M.0.2

Convert 15.3 m3 to liters. Note that 1 mL = 1 cm3. First,convert cubic meters to cubic centimeters, which is equal to thenumber of milliliters. Then convert milliliters to liters.

Convert 80 ppb of O3 to: a. atmospheres b. ppm c. moles/L d. ug/m^3 e. molecules/cm^3 (Temperature and pressure are standard, please show all calculations) 1 atm= 10^9 ppb & 1 atm= 10^6 ppm

Convert 661,000 pascal, pa into torr. 1 atm 760 torr 760 mmHg 101,325 pa 101.325 kpa 1.01325 barr 14.696 p.s.i. 29.921 inHg (inHg and p.s.i. are approximations of the metric pressures and are subject to significant figures)

a) Convert200 Celsius to Kelvin b) Convert 355 Kelvin to Celsius c) Convert 1.23 atm to mmHg d) Convert 235.0 mmHg to atm e) Convert 0.565 atm to kPa f) Convert 350.0 mmHg to kPa g) Convert 55.64 kPa to atm h) Convert 565 Celsius to Kelvin i) Convert 125.32 kPa to mmHg j) 1Convert 265 Kelvin to Celsius

PreLab Experiment 6 The Atomic Spectrum of Hydrogen The helium ion, He, has simple energy levels similar to those of the hydrogen atom since both have only one electron and the electron energy levels of the He ion can be calculated by the equation En 8.715 x 108 J (per photon) n 1. Calculate the energies of the four lowest energy levels of the He

Consider the reaction below BH 3 CH3OCH 3 Which of the following statements is INCORRECT O a. BH3 is an electrophile. O b. CH3OCH3 is a Lewis base. O c. This is an example of a substitution reaction. O d. This is an acidbase reaction H86. 0CH3 I CH 3,Which of the following pairs of drawings represent THE STAGGERED CONFORMATIONS of the compound

The half-life of Sr-90 is 29 years. What fraction of the atoms in a sample would remain after 100 years? How would you compute this?

3. (2 pts) The condensate from a steam distillation contains 20 g of compound A and 40 g of water. At the temperature of the distillation, the vapor pressure of water is 700 mmHg. What is the approximate molecular weight of A Show your work.

Compare two common types of antacids. A CVS Health brand antacidliquid contains 200 mg of Al(OH)3 and 200 mg of Mg(OH)2 per dose.In comparison, Rolaids Extra Strength contains 270 mg of CaCO3 and55 mg of Mg(OH)2 per dose. The active antacid components are OH-and CO32-. Which antacid do you believe is more effective atneutralizing stomach acid per

Consider the reaction Hg2 4 CN Hg(CN)4 CN is a Lewis acid, an electron pair donor. Hg2 is a Lewis base, an electron pair acceptor. Hg2 is a Lewis acid, an electron pair acceptor. CNT is a Lewis base, an electron pair acceptor.

Give the electronic configuration of the oxygen (O) atom. Show it both as an electronpopulated orbital diagram and as a list of orbitals with superscripts indicating the number of electrons. Identify the valence orbitals, the valence electrons, and the core electrons. A. Fill in the atomic orbital diagram for oxygen. Energy 2p 2s 1s B. Choose the

3A) The first ionization energy (IE) is the amount of energy required to move the electron out of the atom completely (from n1 to n o). Use the Bohr equation and prove that the IE 1310 kJmol. Note that the Bohr equation is the energy for a single atom. 5 EA2.18x1018 J where Z atomic number 3B) Use the Bohr equation and calculate the energy

(a) Complete the calculation of the standard reduction potentials for each half cell in Section C. Then, arrange the standard reduction potentials and corresponding halfreactions in order, starting with the most positive at the top of the table and ending with the most negative at the bottom. By doing this you are making a table of reduction

Name H 1.008 hydrogen Symbol Atomic mass Enter the symbol for the element that correctly answers each of the following questions. Which element is the heaviest naturally occurring halogen Which element is in the 5th period and in group 14 Which element is the metalloid in group 13 ch Which element is the heaviest lanthanide Which element in the

For conductivity measurements, briefly explain what theconversion from conductivity units (micro-S cm-1 ) to equivalentconcentrations of NaCl and CaCO3 means -- what assumptions areassociated with this conversion? Comment on the accuracy of theconductivity measurements of the known NaCl standard solutions --was your conductivity meter sufficiently

The condensed formula for formic acid is HCOOH. Write the molecular formula for formic acid Enter the elements in the order CHO.

This is Glycine it acts as a bidentate ligand coordination with the nitrogen atom and on of the oxygen atoms Draw all the possible isomers of a. Square Planar [Ni(gly)_2] b. Tetrahedral [Zn(gly)_2] c. Octahedral [Fe(gly)_3]

H HO C I I

Which compound matches the IR spectrum best?

Transmittance 100 90 80 70 60 50 40 30 20 10 0 4000 3000 Which compound matches the IR spectrum best 2000 1600 Wavenumber (cm) A B 1685 F myn D 1000 A B C H Br H E F adr

Complete the following table for a selection offoods: Food [H3O+] [OH?] pH Acidic, basic, or neutral? Strawberries 3.90 Soy milk neutral Milk 6.610?7 M Part A: Calculate the [H3O+] of strawberrieswith pH=3.90 .Express the molarity to two significantfigures. Part B: Calculate the [OH?] of strawberrieswith pH=3.90 . Express the molarity to two

The compound manganese(II) acetate, Mn(CH3COO)2 is soluble in water. Write the net ionic equation for the dissociation reaction that occurs when solid manganese(II) acetate dissolves in water Use the pulldown boxes to specify states such as (aq) or (s). HO ,The compound sodium chloride, NaCl is soluble in water. Write the formulas for the ions

the compound made of chlorine and oxygen that has been used to kill anthrax spores in contaminated buildings is 52.6% Cl. What is the empirical formula?

O D. H NNHCH O E. CNNHCH HOCH HOCH HOCH CHOH CHOH CNNHC Hs ENNHCH HOCH HOCH CHOH

Classify each of the changes as a physical change or a chemical change. Physical change A block of ice melts. A dry leaf is crushed. Grass in a yard is cut. Answer Bank Chemical change An iron nail rusts. A chemistry book is burned.

A few common weak acids with their acid dissociation constants,Ka, are listed in the table: Acid Ka HOAc 1.8 10 -5 HCHO 2 1.8 10 -4 HClO 3.0 10 -8 HF 6.8 10 -4 Rank the acids above from weakest to strongest. Which acid above has the weakest conjugate base? question 2 What is the pH of a 0.0015 M HClO 3 solutionat 25.0 C? Group of answer

A gas evolved during a chemical reaction and has a volume of 612 mL at 34 C and 1,191 torr. What was the volume of this gas in mL at 119 C and 4.23 atmospheres Just put in the number. The assumption is the unit is mL.,A sample of aluminum metal reacts completely with an excess of hydrochloric acid 2 Al(s) 6 HCl(aq) 2AlCl3(aq) 3 H(g) The

GaviLyte-C, a colon lavage preparation, contains the followingmixture of dry powder in each container to prepare four liters of solution: Polyethylene glycol 3350 240 g Sodium sulfate [Na2S04, MW 142] 22.72 g Sodium bicarbonate [NaHC03, MW 84]: 6.72g Sodium chloride [NaCl, MW 58.5): 5.84 g Potassium chloride [KCI, MW 74.5] 2.98 g Express the total

Classify the following materials as pure substances ormixtures: powdered sulfur , 80proof vodka , baking powder . If theyare mixtures, subclassify them as homogeneous or heterogeneous; ifthey are substances, subclassify them as compounds or elements.

What are the chemical properties of chlorine in the following statement At 25C, chlorine is a greenyellow gas with a density of 3 x 103 gcm. Chlorine has a melting point of 101C and a boiling point of 35C, and the energy required to melt and boil chlorine is 6.4 and 20.4 kJmol, respectively. Chlorine burns in hydrogen to form hydrogen chloride.

Which of the following statementsis not true about water? Group of answer choices Water molecules are attracted to each other by hydrogenbonds. Water molecules are covalently bonded. Water dissolves polar substances well. The water molecule is linear. Gasoline is insoluble in water. Equal volumes of two solutions, a 10% (m/v) starch solution anda

Which of the following setups would convert centimeters to feet 1 in 2.54 cm cm x cm x cm x cm x cm x 1 in 2.54 cm 2.54 cm 1 in 2.54 in 1 cm 2.54 cm 1 in X 1 ft 12 in. 12 in. 1 ft 1 ft 12 in. 1 ft 12 in. 12 in. 1 ft

DIRECTIONS 1. There are two parts to this group activity a) Symbol and Calculated Atomic Mass b) Symbol and p, e, n, A. 2 for isotopes 2) Give the symbol for the isotope. Calculate the atomic mass Atomic Mass (fraction of isotope 1) x (mass of isotope 1) (fraction of isotope 2) x (mass of isotope 2) for the following elements using the isotopic

Which of the following statements are true If a statement is true only under special circumstances, label it as false. Select all that apply. ANSWER If the temperature of the system increased, w 0. If the temperature of the system increased, q 0. If work is done on a system the temperature always increases. Heat flow into a system always causes

A childs height was determined to be 148 cm. What is the childs height in 5 feet and 58 inches 1 in 2.54 cm (Use only whole numbers.)

Which of the following statements best describes an oxidationreduction reaction OOOO If there is a change in the oxidation states of atoms from reactants to products, the reaction is an oxidation reduction reaction. If there is formation of salt and water, the reaction is an oxidationreduction reaction. If there is formation of a precipitate, the

C The chemical reactivity of an element is determined by which of the following the number of protons in an atom of the element the number of valence electrons in an atom of the element the number of neutrons in an atom of the element the number of protons and neutrons in an atom of the element

Which chemical equation is an example of a neutralization reaction 2KCIO3 2KCI 30 OHCI NaOH NaCl HO OCH4 202 2CO2 2HO 2Na Cl 2NaCl Zn 2HCl ZnCl H,Which chemical equation is an example of a neutralization reaction O Ba HSO4 BasO4 H O FeO3 3SO3 Fe(SO4)3 OCH5OH 302 2CO2 3HO O2 C7H5N3063 N 5 H0 7 C0 7C O2H3PO4 3Ca(OH)2 6HO

Which of the following is a chemical change A) cooking an egg B) mixing oil and water C) tearing a piece of paper D) watching a DVD

Which of the following properties of zinc are chemical properties Check all that apply. It has a mass of 65.38 g. It is a bluish, whitecolored metal. It reacts with chlorine to form zinc chloride. It burns under a flame giving off zinc oxide fumes. Submit Hints My Answers Give Up Review Part Part B Which of the following properties of a chalk are

Which of the following pairs has the correct name for the corresponding chemical formula. HSO3 Sulfuric acid FeO Iron oxide Zn3(PO4)2 Zinc (II) phosphate Ca(CH302)2 Calcium (II) acetate None of the above.

What is the charge on the iron ion in FeCl 3 a.1 ob.1 Oc. 3 od.0 e.3

Which of the following elements is NOT a metal A) arsenic B) indium C) iridium D) lithium E) lutetium

The following clue appeared in the NYT Crossword puzzle for Sunday, 8 December 2019. What all NaCl molecules have The answer to this clue was lons Identify and explain the error in this crossword clue, using one or two meaningful sentences. This picture shows the structure of solid NaCl. Iff

For the following, Cycle 1 indicates the cycle where the acetylCoA containing labeled carbon is first added to oxaloacetate. Cycle2 indicates the following cycle. IDH = isocitratedehydrogenase, ????-KGDH = ????-ketoglutarate dehydrogenase, and PDH =pyruvate dehydrogenase. If acetate was labeled at C1, where would it be lost (throughthe CAC) as CO

A carpet sells for 24.99 per square yard. What is the price of the carpet per square meter 30.08 How much will it cost to carpet an area of 1725 ft 5761.5 Incorrect m

A can of cashews has a mass of 8.5 oz. What is this massin kg? [1 lb = 16 oz, 1 lb = 453.6 g, 1 kg = 2.205 lbs] A. 3900 kg B. 0.24 kg C. 240 kg D. 3.9 kg E. 0.14 kg

A camp stove is used to boil water for a spaghetti dinner one chilly November evening while camping. The camp stove burns 6.57 g of propane (AHomb 2219.2 KJmol) to heat the 500.0 g aluminum pot (c 0.503 JgC). If the tap water at the camp site and the pot are both 22C, how much water should be placed in the pot to bring it and the water to its

Calculate the pH when 0.69 g of C6H5COONa (FW = 144.1 g/mol) isadded to 12 mL of 0.50 M benzoic acid, C6H5COOH (FW = 122.1 g/mol).Ignore any changes in volume. The Ka value for C6H5COOH is 6.5 x10-5.

Calcium hydroxide (slaked lime) is a major component of mortar,plaster, and cement, and solutions of Ca(OH) 2 areused in industry as a strong, inexpensive base. Calculate the molarsolubility of Ca(OH) 2 in water given thatthe K sp is 2.910 6 . Multiply the answer you get by 1000 and enter that number to 1decimal place.

Calculations Data for iron (Fe) Boiling point 2861C Melting point 1538C heat of vaporization 1.50 kcalgram heat of fusion 59 calgram specific heat of Fe 0.105 calg C 1. a) Solid iron can exist at any temperature up to melting pointoc. b) Molten, liquid iron can exist between the temperatures of 153 8P) C and 2861 bP C. 2) How many calories are

Calculate the standard error of regression (SER) for the Lineweaver-Burk slope and the Eadie-Hofstee slope to compare theprecision of each.

There are several ways to transform the MichaelisMenten equation so as to plot data and derive kinetic parameters, each with different advantages depending on the data set being analyzed. One transformation of the MichaelisMenten equation is the LineweaverBurk, or doublereciprocal, equation. Multiplying both sides of the LineweaverBurk equation by

Problem 1 Calculate the molecular weight of caffeine (CHN4O). Problem 2 Calculate the molecular weight of calcium bromide. Problem 3 How many moles of cobalt atoms are contained in 1.07 g of cobalt Problem 4 What is the mass of 0.100 mole of hydrogen sulfide (MW 34.0809 gmol)

calculate the molarity of the solution. the volume of the standard solution is 250 ml. The molar mass of potassium iodate is 214.001 g mol ^-1. Mass of KIO3 0.630 g M= ((mass KlO3 (g)/ molar mass KlO3)/0.250 L)

A, b and c please

rmat Arrange Tools Slide Show Window Help ns Slide Show Review View be X X A A FBBS2 Reagent Workshop Spring 2017(1) AS Convert to SmartArt Solutions Prep Workshop Picture Shapes tube 1 take some stock, dilute it 110 with some water in a new tube 1 tube 2 take some of 1, dilute it 110 with some water in a new tube tube 3 take some of 2, dilute it

Calculate the heat of hydrogenation and the heat of combustionfor all five alkenes using theformula: DH rxn = ?DH f (products)? ?DH f (reactants) . Remember that the sign andunits of DH rxn is important. Please help, don't understand how to fill in the two tables!Please include how you got the numbers and calculations so Ican understand and learn.

formula AHxx AH (products) AH (reactants). Remember that the sign and units of AHxxn is important. Table 2 Heat of Hydrogenation of Alkenes Alkene 1hexene cis2hexene trans2hexene 2methyl2pentene 2,3dimethyl2butene Table 3 Heat of Combustion of Alkenes Alkene 1hexene cis2hexene trans2hexene Structure of Hydrogenation Product 2methyl2pentene

Calculate the [ H 3 O + ] of soy milk Calculate the [O H ? ] of apple juice with pH=3.80 Calculate the [O H ? ] of soy milk Calculate the pH of soy milk please and thank you so much

calculate the elimination rateconstant and half-life of thedrug. Calculate the volume of distributionof the drug. The AUC of the drug is 41.5 mg hr/L.Calculate the clearance of the drug Table 1. Plasma level dataobtained following an I.V . 50 mg bolus dose. Time, hr Plasma Concentration, mg/L 0.25 3.0 0.50 2.8 0.75 2.3 1.0 2.2 1.5 2.0 2.0 1.8 4.0

please answer correctly and I'll be sure to leave a big like for you

Calcium carbonate reacts with hydrochloric acid as follows 2 HCl(aq) CaCO3(s) CO2(g) HO(l) CaCl2(aq) In a reaction, 7.5 g HCI is combined with 5.0 g CaCO3. a.) What is the theoretical yield of CaCl2 in grams (7 pts) b.) Give the name of the limiting reactant. (2 pts) c.) Give the name of the reactant in excess. (2 pts) d.) How much of the

Calcium chloride, CaCl2, is commonly used as an electrolyte insports drinks and other beverages, including bottled water. Asolution is made by adding 7.50 g of CaCl2 to 60.0 mL of water at25?C. The density of the solvent at that temperature is 0.997 g/mL.Calculate the mole percent of CaCl2 in the solution.

Calcium carbonate reacts with HCl according to thefollowing equation: 2HCl(aq)+CaCO3(s)?CaCl2(aq)+H2O(l)+CO2(g) How many moles of HCl are in 71 mL of0.14 M HCl? Express your answer using two significant figures.

c) The radical cation of benzocaine can fragment via two possible cleavages of the bonds adjacent to the carbonyl. The B3LYP energies of each of the optimized structures of the radical and cation fragments of both possible acleavages are provided below. Calculate the relative energy (kcalmol) of each set of products below. 1 Hartree 627.509608

Name these and assign E/Z when necessary:)

Name the following compounds according to IUPAC rules. This is due at the beginning of the next lecture period. Keep a copy for yourself as well there will be a key posted and you can check your work. An online is posted on D2L covering similar examples (consult the lecture schedule). Berzy) 14.3 Br 1 E bue Thurs Homework Unit 1 Diene Nomenclature

Explain why water is polar. Check all that apply. View Available Hint(s) Water is known as a polar molecule because the electrons of the covalent bond are not shared equally between the hydrogen and oxygen atoms. its molecular geometry is bent. water dipole moment is equal to zero. the oxygen and hydrogen atoms have the same electronegativity. the

EXPLORE Are solutions mixture Yes. Are mixtures solutions No Yes So what is it What are colloids How about suspensions How are they different What is air made of Youll find the answers as you go along this unit. Make sure to watch the supplementary videos and read the supplementary lessons. Before you go further, try to test your knowledge by

Explain why the first ionization energy of Ca is greater than that of K, whereas the second ionization energy of Ca is lower than the second ionization energy of K. (Select all that apply.) When K loses one electron, it achieves a noble gas configuration. When K loses two electrons, it achieves a noble gas configuration. Removal of a second

Bio 105 Ch 2 Atoms and Bohr Models Worksheet Atoms and the Periodic Table 1. Fill out the table below Subatomic particle Charge Mass (amu) Location in atom Proton Neutron Electron 2. The atomic number tells you the number of an atom has. 3. The atomic mass tells you the number of and an atom has. 4. How can you determine the number of electrons in

Boron carbide has the empirical formula B4C. What is a better representation of boron carbide Explain.

The bond enthalpy for the ond in N2 is 945 kJ/mol. The bondenthalpy for the bond in O2 is 498 kj/mol. The bond enthalpies forthe bonds, N-N, N-O, and N(DOUBLE BOND) O are 163, 201, and 607kJ/mol, respectively. what is the approximate reaction enthalpy forthe reaction N2 + 2O2 --> N2O4 (the structure of N2O4 has twoNO2 groups connected together