Write the name of each of the following molecular structures. d. a. b. e. C.
Predict the molecular structure for each of the following. (See Exercises 89 and 90.) a. BrFI2 b. XeO2F2 c. TeF2Cl3- For each formula, there are at least two different structures that can be drawn...
Aspartame is an artificial sweetener marketed under the name Nutra-Sweet. A partial Lewis structure for aspartame is shown below: Note that the six- sided ring is shorthand notation for a benzene...
For each chemical formula below, an NMR spectrum is described, including relative overall areas (intensities) for the various signals given in parentheses. Draw the structure of a compound having the...
The following data were obtained for the reaction 2ClO2(aq) + 2OH2(aq) ClO3-(aq) + ClO2-(aq) + H2O(l) where a. Determine the rate law and the value of the rate constant. b. What would be the initial...
For the reaction A n products, successive half-lives are observed to be 10.0, 20.0, and 40.0 min for an experiment in which [A]0 = 0.10 M. Calculate the concentration of A at the following times. a....
The gas-phase reaction between Br2 and H2 to form HBr is assumed to proceed by the following mechanism: a. Under what conditions does the rate law have the form rate = k[Br2]? b. Under what...
Mn crystallizes in the same type of cubic unit cell as Cu. Assuming that the radius of Mn is 5.6% larger than the radius of Cu and the density of Cu is 8.96 g/cm3, calculate the density of Mn.
A 0.250-g chunk of sodium metal is cautiously dropped into a mixture of 50.0 g of water and 50.0 g of ice, both at 0oC. The reaction is 2Na(s) + 2H2O(l) 2NaOH(aq) + H2(g) H = 368 kJ Will the ice...
Give an example reaction that would yield the following products as major organic products. For oxidation reactions, just write oxidation over the arrow and dont worry about the actual reagent. a....
For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 5.00-L rigid container are [H2] = 0.0500 M, [F2] = 0.0100 M, and [HF] = 0.400 M. H2(g) + F2(g) ...
For the reaction at 298 K, 2NO2(g) N2O4(g) the values of Ho and So are 58.03 kJ and 176.6 J/ K, respectively. What is the value of Go at 298 K? Assuming that Ho and So do not depend on temperature,...
Using data from Appendix 4, calculate G for the reaction 2H2S(g) + SO2(g) 3S(s) + 2H2O(g) for the following conditions at 25oC: PH2S = 1.0 104 atm PSO2 = 1.0 10-2 atm PH2O = 3.0 10-2 atm
Two crystalline forms of white phosphorus are known. Both forms contain P4 molecules, but the molecules are packed together in different ways. The a form is always obtained when the liquid freezes....
Consider the following system at equilibrium at 25oC: PCl3(g) + Cl2(g) PCl5(g) Go = 92.50 kJ What will happen to the ratio of partial pressure of PCl5 to partial pressure of PCl3 if the temperature...
The initial state of an ideal gas is 2.00 atm, 2.00 L. The final state is 1.00 atm, 4.00 L. The expansion is accomplished isothermally. a. If the expansion is a free expansion, calculate w, q, E, and...
What volume of 0.0100 M NaOH must be added to 1.00 L of 0.0500 M HOCl to achieve a pH of 8.00?
Citric acid (H3C6H5O7) is a triprotic acid with Ka1 = 8.4 10-4, Ka2 = 1.8 10-5, and Ka3 = 4.0 10-6. Calculate the pH of 0.15 M citric acid.
What is the difference between the stated interest rate and the effective-interest rate on a bond?
On January 1, 2014, Kaizen Corporation issued a $ 500 million note that matures in 10 years. The note has a stated interest rate of 6 percent. When the note was issued, the market rate was 6 percent....
Diego Company sells a wide range of goods through two retail stores operating in adjoining cities. Most purchases of goods for resale are on account. Occasionally, a short- term note payable is used...
Gonzales Co. provides warranties for many of its products. Its estimated warranty liability account had a balance of $ 140,800 at January 1, 2014. Based on an analysis of warranty claims during the...
In Fig. 8.23, a mass m descends a vertical distance from rest. (Neglect friction and the mass of the string.) (a) From the conservation of mechanical energy, will the linear speed of the descending...
The business press reported the following information concerning a bond issued by Trans-Canada Pipelines: Required: 1. Explain the meaning of the reported information. If you bought Trans- Canada...
How many cubic millimeters are present in 0.0923 m3?
Write these numbers in scientific notation by counting the number of places the decimal point is moved. a. 0.000552 b. 1,987 c. 0.00000000887
These numbers are not written in proper scientific notation. Rewrite them so that they are in proper scientific notation. a. 8,099 10-8 b. 34.5 100 c. 0.000332 104
Express these numbers in scientific notation. a. 890,000 b. 602,000,000,000 c. 0.0000004099 d. 0.000000000000011
Perform each calculation and limit each answer to four significant figures. a. 18,900 76.33 ( 0.00336 = ? b. 0.77604 ( 76,003 8.888 = ?
How many significant figures do these numbers have? a. 23 b. 23.0 c. 0.00023 d. 0.0002302
How many significant figures do these numbers have? a. 0.009 b. 0.0000009 c. 65,444 d. 65,040
Perform the following conversions. a. 6.79 10-6 kg to micrograms b. 1.22 mL to kiloliters c. 9.508 10-9 ks to milliseconds
Perform the following conversions. Note that you will have to convert units in both the numerator and the denominator. a. 3.88 102 mm/s to kilometers/hour b. 1.004 kg/L to grams/milliliter
Perform the following conversions. a. 90.6 mL to liters b. 0.00066 ML to liters c. 750 L to kiloliters
The volume of an Olympic-sized swimming pool is 2.50 109 cm3. If the pool is filled with alcohol (d = 0.789 g/cm3), what mass of alcohol is in the pool?
What is the volume in liters of 222 g of neon if neon has a density of 0.900 g/L?
Perform the following conversions. a. 1,065C to degrees Fahrenheit b. 222C to degrees Fahrenheit c. 400.0F to degrees Celsius d. 200.0F to degrees Celsius
What is the volume in liters of 20.5 g of sulfur hexafluoride if sulfur hexafluoride has a density of 6.164 g/L?
Perform the following conversions. a. 1,000.0 K to degrees Celsius b. 50.0 K to degrees Celsius c. 37.0C to kelvins d. 37.0C to kelvins
Convert 0 K to degrees Fahrenheit. What is the significance of the temperature in degrees Fahrenheit?
Which pair represents isotopes? .0 40
Give atomic symbols for each element. a. Sodium b. Argon c. Nitrogen d. Radon
Give the name of the element. a. Si b. Mn c. Fe d. Cr
Give the proper name for each molecule. a. P4O10 b. B2O3 c. P2S3
Give the proper formula for each name. a. Nitrogen triiodide b. Diarsenic trisulfide c. Iodine trichloride
Give the proper formula for each name. a. Chlorine dioxide b. Selenium dibromide c. Dinitrogen trioxide
Determine the mass of each substance. a. Kr b. KrF4 c. PF5
Determine the mass of each substance. a. NO b. N2O4 c. Ca
Determine the atomic mass of each element, given the isotopic composition. a. Neon, which is 90.48% neon-20 (mass 19.992 u), 0.27% neon-21 (mass 20.994 u), and 9.25% neon-22 (mass 21.991 u) b....
Give the formula and name for each ionic compound formed between the two listed ions. a. Mg2+ and Cl b. Fe2+ and O2 c. Fe3+ and O2
Give the charge each atom takes when it forms an ion. If more than one charge is possible, list both. a. K b. O c. Co
Give the formula for each acid. a. Hydrosulfuric acid b. Phosphorous acid
Name each acid. a. H2SO4(aq) b. H3PO4(aq) c. HCl(aq)
Write and balance the chemical equation that represents nitrogen and hydrogen reacting to produce ammonia, NH3.
Write the chemical equation that represents the dissociation of (NH4)2S.
Assuming that each double-replacement reaction occurs, predict the products and write each balanced chemical equation. a. Zn(NO3)2 + NaOH ( ? b. HCl + Na2S ( ?
Assuming that each double-replacement reaction occurs, predict the products and write each balanced chemical equation. a. Ca(C2H3O2)2 + HNO3 ( ? b. Na2CO3 + Sr(NO2)2 ( ?
Assuming that each double-replacement reaction occurs, predict the products and write each balanced chemical equation. a. Sn(OH)2 + FeBr3 ( ? b. CsNO3 + KCl ( ?
Assuming that each single-replacement reaction occurs, predict the products and write each balanced chemical equation. a. Zn + Fe(NO3)2 ( ? b. F2 + FeI3 ( ?
Write the net ionic equation for the reaction of BaCl2(aq) and Na2SO4(aq). You may have to consult the solubility rules.
Write the net ionic equation for the reaction of Fe2(SO4)3(aq) and Sr(NO3)2(aq). You may have to consult the solubility rules.
Write a chemical equation that represents Fe(C2H3O2)3(s) dissociating in water.
Write the complete ionic equation for the reaction of BaCl2(aq) and Na2SO4(aq). You may have to consult the solubility rules.
Write the complete ionic equation for the reaction of Fe2(SO4)3(aq) and Sr(NO3)2(aq). You may have to consult the solubility rules.
Which is a combustion reaction and which is not? a. P4 + 5O2 ( 2P2O5 b. 2Al2S3 + 9O2 ( 2Al2O3 + 6SO2
Complete and balance each combustion equation. a. C4H9OH + O2 ( ? b. CH3NO2 + O2 ( ?
Which is a composition reaction and which is not? a. H2 + Cl2 ( 2HCl b. 2HBr + Cl2 ( 2HCl + Br2
Which is a decomposition reaction and which is not? a. HCl + NaOH ( NaCl + H2O b. CaCO3 ( CaO + CO2
Which is a combustion reaction and which is not? a. C6H12O6 + 6O2 ( 6CO2 + 6H2O b. 2Fe2S3 + 9O2 ( 2Fe2O3 + 6SO2
Identify what is being oxidized and reduced in this redox equation by assigning oxidation numbers to the atoms. 2K + MgCl2 ( 2KCl + Mg
Is the reaction NaCl(aq) + AgNO3(aq) ( NaNO3(aq) + AgCl(s) an oxidation-reduction reaction? Explain your answer.
In the reaction 2Ni(s) + 3I2(s) ( 2NiI3(s) indicate what has been oxidized and what has been reduced.
What are the oxidation numbers of the sulfur atoms in these substances? a. SF6 b. Na2SO4 c. K2SO3 d. SO3 e. SO2 f. S8 g. Na2S
Predict the products of and balance this double-replacement reaction. Ag2SO4(aq) + SrCl2(aq) ( ?
If V1 = 456 mL, P1 = 308 torr, and P2 = 1.55 atm, what is V2?
A pressure of 0.887 atm equals how many pascals?
How many atmospheres are in 889 mmHg?
How many torr are in 2.443 atm?
A gas has an initial pressure of 87.0 torr and an initial volume of 28.5 mL. What is its new volume if pressure is changed to 206 torr? Assume temperature and amount are held constant.
A gas has an initial volume of 67.5 mL and an initial temperature of 315 K. What is its new volume if temperature is changed to 244 K? Assume pressure and amount are held constant.
A gas has an initial volume of 655 mL and an initial temperature of 295 K. What is its new temperature if volume is changed to 577 mL? Assume pressure and amount are held constant.
Use the combined gas law to complete this table. Assume that the amount remains constant in all cases. Ti P2 T; 56.7 mL 1.07 atm34C 3.49 L338 to 45C 1,236 mL 2.09 mL776 to 359 K 0.461 mL0.668 atm 998...
The initial conditions of a sample of gas are 319 K, 3.087 L, and 591 torr. What is its final pressure if volume is changed to 2.222 L and temperature is changed to 299 K?
Use Gay-Lussacs law to determine the final pressure of a gas whose initial pressure is 602 torr, initial temperature is 356 K, and final temperature is 277 K. Assume volume and amount are held...
If 5.55 1022 atoms of He occupy a volume of 2.06 L at 0(C at 1.00 atm pressure, what volume do 2.08 1023 atoms of He occupy under the same conditions?
Use Avogadros law to determine the final amount of a gas whose initial volume is 885 mL, initial amount is 0.552mol, and final volume is 1,477mL. Assume pressure and temperature are held constant.
Oxygen is a product of the decomposition of mercury(II) oxide: 2HgO(s) ( 2Hg() + O2(g) What volume of O2 is formed from the decomposition of 3.009 g of HgO if the gas has a pressure of 744 torr and a...
Lithium oxide is used to absorb carbon dioxide: Li2O(s) + CO2(g) ( Li2CO3(s) What volume of CO2 can 6.77 g of Li2O absorb if the CO2 pressure is 3.5 104 atm and the temperature is 295 K?
What is the volume of 17.88 mol of Ar at STP?
How many liters, at STP, of O2 are required to burn 3.77 g of butane from a disposable lighter? 2C4H10(g) + 13O2(g) ( 8CO2(g) + 10H2O()
What is the density of each gas at STP? a. H2 b. O2 c. N2
A 0.0555 mol sample of Kr has a temperature of 188C and a volume of 0.577 L. What pressure does it have?
If 1.000 mol of gas has a volume of 5.00 L and a pressure of 5.00 atm, what is its temperature?
In a gas mixture of He and Ne, the total pressure is 335 torr and the partial pressure of He is 0.228 atm. What is the partial pressure of Ne?
A 3.55 L container has a mixture of 56.7 g of Ar and 33.9 g of Heat 33C. What are the partial pressures of the gases and the total pressure inside the container?
If a balloon is filled with 1.000 mol of Heat 760 torr and 22(C, what is its a. Initial volume before ascent? b. Final volume if it descends to the bottom of the Mariana Trench, where the surrounding...
What is the final temperature of a gas whose initial conditions are 667 mL, 822 torr, and 67C and whose final volume and pressure are 1.334 L and 2.98 atm, respectively? Assume the amount remains...
Express the quantity of 3.225 kJ in calories.
Express the quantity 965.33 kcal in joules.
Express the quantity 965.33 Cal in joules.