1. A highway has an optional toll lane that drivers may take to reduce the time they spend driving. Drivers pay a small fee to enter the toll lane ($0.25). Then, once they leave the toll lane, they...

What is the major product formed in the following reaction? HBr A) B) Br Br D) C) Br Br

10 ml of a weak acid (HA) solution is 20% dissociated n water. This solution is completely neutralized by ml of 2 x 10 M NAOH solution. Which of the following is/are correct about the solution: ( log...

Chemistry Determine the limiting reactant (LR) and the mass (in g) of nitrogen that can be formed from 20.0 g N2O4 and 25.0 g N2H4. Some possibly useful molar masses are as follows: N2O4 = 92.02...

(1) How can I figure this out using solubility? I know I need to find a reagent that will form precipitate with Ag+ or Na+ You are the manager of a chemical stockroom, and find a bottle containing...

lonization potential of gaseous X ion is 13.62 ev. Calculate the electron affinity of gaseous 'X' atom (in eV) Backspace 7 89 4 5 6 1 2 3

PART C: Problems (20 marks) Answer all questions in the space provided. Show complete solutions for full marks. All answers must be expressed using correct significant digits. 1. What is the...

these stOCKS prepare mM EDT 4. You are asked to prepare a 200ml stock of 20% (w/v) Sodium Dodecyl Sulfate (SDS, 288.37 g/mol). This is provided to you as a white powder. How would you prepare this?...

Percent Error At 25 C, the density of water is 0.997044 g/mL. Use this value to determine the percent error for the two density measurements. Calculate the percent error for density using graduated...

Jackie Wong was an enthusiastic employee when she began working in the accounting department at Steelfab Corp. In particular, she prided herself in discovering better ways of handling invoice and...

Melting point measurements Table 1. Melting point of pure compounds Start melting temperature ("C) Complete melted temperature ("C) Pure benzoic acid 122 125 Pure mandelic acid 117 123 Table 2....

For a reservoir containing oil and a free gas cap, as the one shown in the figure below by using the above gradients, find the pressure distribution shown on the left-hand side of the diagram. ? What...

Given: the atomic mass of calcium is 40.1 g/mole, and the atomic mass of chloride is 35.5 g/mole. What % solution is a 1 M CaCl, solution? a) 11.1% b) 0.11% c) 0.04% d) 33.3% e) 0.33%

How many air molecules are in a 4.053.663.05 m3 room? Assume atmospheric pressure of 1.00 bar, a room temperature of 20.0 C, and ideal behavior? Express your answer numerically in litres.

Find the percent compositions of all of the elements in the following compounds: 1) CuBr2 Cu: Br: 2) NaOH Na: O: H: 3) (NH4)2S N: H: S: 4) N2S2 N: S:

2. A laser pointer used in the classroom emits light at 6550 A, at a power of 4.00 mW. (One watt is the SI unit of power, the measure of energy per unit of time. 1 W = 1 J/s). How many photons are...

To ensure that the decolorization of crystal violet reaction takes place within the linear range of the crystal violet calibration curve and that there is an excess of hydroxide ions, 10.0 mL of the...

Ni As a b

Calculate the value of CP at 298 K and 1 atm pressure predicted for CH4(g) and C2H4(g) by the classical equipartition theorem. Compare the predicted results with the experimental results and...

9.Consider the reaction 3NO2(g)+H2O=2HNO3(aq)+NO(g) where Delta H=-137 kJ.How many kilojoules are released when 92.3g of NO2 reacts?

The pyridine N-oxide, compound A, is a new drug claimed to be useful for the treatment of senile dementia. Industrial synthesis of it is outlined below. i) Suggest a mechanism to account for Step 1...

show and explain the mechanism with 3-nonanoic acid to y-nonanoic lactone? Amberlyst-15 heptane reflux 3-nonenoic acid Y-nonanoic lactone Introduction. The product of this reaction has the fragrance...

Lake Operon has a surface area of 5.5 X 10 8 m2 . There is a stream that flows in to the lake with a phosphorus concentration of 25 g/L and a flow rate of 75 m3 /s. The phosphorus settling rate (vs)...

The corrosion rate of iron in deaerated HCl of pH = 3 is 3.0gmd. Calculate the corrosion potential of iron in this acid versus 0.1 N calomel electrode. Assume that the entire iron surface acts as a...

For the reduction of citral using Diludine as a hydride source, an equivalent of pyridine will be generated as a side-product, which you are asked to isolate and analyze. Propose a short game plan on...

The sample of tap water is titrated with standard ca 0.01 M EDTA solution, and the total harness calculated as parts per million of CaCO3. The total hardness of water is generally due to dissolved Ca...

The diagrams below represent aqueous solutions that contain lonic or molecular solutes. The solvent molecules have been omitted for clarity Identify each of the following drawings as representing a...

(1) LDA; NBS (2) t-BUOK, t-BUOH (3) Grubbs II (4) EtMgBr (ess); H,O*

A. Find the concentration of salt (lb/gal) in tank 1 and 2 after 100 minutes. B. Find the concentration of salt (lb/gal) in tank 1 and 2 when tank 2 is in full capacity. C. Find the concentration of...

Step 1. Bromine substitution of isobutyl alcohol This reaction is analogous to the one you did in Week 7/8. However, in this one you obtain two constitutional isomers of the product, and you will...

STANDARDIZATION OF ca 0.02M KMnO4 SOLUTION WITH STANDARD OXALIC ACID. REQUIREMENTS (1) KMnO4 solution (0,02M) (2) Oxalic acid 0.05M (3) 3M H2SO4 solution The oxalic acid dihydrate solution was...

A buffer solution was made up of ammonia and water which produced ammonium ions and hydroxide ions. a. Write the equilibrium equation which represents this buffer and the simplified Ka expression b....

The enzyme examase catalyses the following reaction, A - B where A is the reactant and B is the product AS95 measurements were used to determine the catalytic activity of examase by measuring the...

Use Hckel theory to calculate the coefficients of the MOs for the following molecule: CH2 2 3

1. From the 0.25% stock solution of Bromophenol Blue(BPB), prepare 8mL of 0.1% BPB working solution in a large test tube. When preparing solutions, always transfer water to the tube first, then add...

1) One ream of paper is defined as 500 sheets of paper. a) Is this an exact or inexact relationship? Explain.e b) If this is an inexact relationship, how many significant figures are shown in this...

Using the ACDLabs NMR simulator (once in the simulator, use the help Help menu at the top to access full instructions), complete the table below by indicating splitting patterns and integration for...

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for AgCl(s) is -916 kJ/mol and the hydration enthalpy (dissolution of gaseous ions into water) is 850 kJ/mol. How much heat...

Calculate the amount of heat released from combustion of 1g of wood. The heat capacity of the bomb calorimeter is 9.96 kJ/"C. kJ

Richards and Willard determined the molar mass of lithium and collected the following data.6 Experiment Molar mass, g/mol 1 6.9391 2 6.9407 3 6.9409 4 6.9399 5 6.9407 6 6.9391 7 6.9406 Assuming that...

1. Classify each of the following common objects as being either chiral or achiral. Assume in each case that the object is in its simplest form, without decoration or printed labels. (a) A ladder;...

Fill each of your three test tubes about 1/4 full with baking soda, then add distilled water until the test tube is almost full, leaving some room for the cap. Cap each test tube and give it a good...

The ireversible gas-phase nonelementary reaction A+ 2B C is to be carried out isothermally in a constant-pressure batch reactor. The feed is at a temperature of 227C, a pressure of 1013 kPa, and its...

For the reaction below: CHy-H OH H-OH a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button...

2.25 The density of 600 bbl of 12-lbm/gal mud must be increased to 14 lbm/gal using API barite. One gallon of water per sack of barite will be added to maintain an acceptable mud con- sistency. The...

How much heat (in kJ) is needed to convert 866 g of ice at -8C to steam at 143C? (The specific heats of ice, liquid water, and steam are 2.03, 4.18 and 1.99 J/g .C,respectively.). The AHvap of water...

What is the approximate initial velocity of the enzyme catalysed reaction shown in the graph below? Rate of enzyme catalysed reaction 0.8 y = 0.3576x +0.0234 R = 0.9921 0.7 0.6 0.5 0.4 0.3 0.2 0.1...

Consider acetic acid, CH 3 COOH, the active ingredient in vinegar. It is also responsible for the sour taste of wine when wine gets exposed to air. Bacterial oxidation turns alcohol to acid. C 2 H 5...

The first two spin orbitals for the hydrogen atom are 1 Pr0o(r,0, $,0) = V4n a, ,3/2 and 1. 1(r,0,4,0) e ao V4n a2 show that they are orthogonal, assuming that the spatial and spin parts of the wave...

Create Infographic for this topic, Stability of pharmaceuticals Under this topic, the following keywords/concepts should be covered in your infographic: - Types of stability - Strategies to overcome...

Marshall Junior was born on August 1 of this year. Current college costs are about $20,000 per year and rising at about 5% annually. 1. How much will college cost Marshall Jr's Freshman Year, which...

The pictures below show two liquids used in an experiment similar to: "Introduction to Measurement". Based on the pictures, and knowing that the mass of the empty cylinder is 80.6g, complete the...

a. How can you tell by Infrared Spectroscopy that the reaction (Synthesis of an Active Ingredient in Tiger Balm: camphor) worked? How can you tell by 1 H NMR (proton nuclear magnetic resonance) that...

13.7m / 1200ms ???m/ms %3D 114

Which of these cannot be oxidized by chromic acid? OH . b. C. d. OH O d O a O c O b

Which one of the following options correctly ranks the acidity of the depicted compounds? Select one: Ha >HVCHCO,H > CH,CO,H > CH,CO,H O b. Ha >H>aCH,cO.H > O,COH > CH,CO,H H> Ha > aCH,cOH > ICHCOH >...

1. Why was it important to filter the saturated solutions before taking the pH readings? 2. During the video it was mentioned that the pH of Cu(OH)2 usually is 5.50. Why does is the pH so low? 3.For...

1. What type of decay does Tin-100 undergo? 2. Silicon39 atoms are unstable. What type of radiation is emitted during the decay of this atom? 3. What atom is formed during this decay with the decay...

Henry's Law and its corresponding constant kH have been expressed in a variety of different, yet effectively equivalent, fashions. A Henry's law constant for CH4 in benzene at 25C is: kH(CH4,benzene)...

Burnham elementary School spent $100,000 on textbooks for the fall 2019 semester. It had expected to have a total enrollment of 450 students who would each have needed four books at a cost of $65...

9.93 Monensin is a potent antibiotic compound isolated from Streptomyces cinnamonensis. The following reaction was employed dur- ing W. C. Still's synthesis of monensin (J. Am. Chem. Soc. 1980, 102,...

Essay: (30 points) Answer the question as indicated to earn all available points. 49. A Chemistry student was given the following mixture: nickel filings, small Styrofoam pellets, sugar, sand, and...

A manufacture firm estimates that annual profits will increase if a mobile model is built and taken to trade shows to market their product line. A finance and engineering team has looked at the issue...

An aqueous solution contains 2.8 mM of total ions. Part A If the solution is NaCl(aq), what is the concentration of chloride ion? Express your answer as a concentration to two significant figures. 15...

Drag the labels to their appropriate locations in thisdiagram. First use the labels of Group 1 to identify the atoms andcharges. Then use the labels of Group 2 to identify the bonds. Labels can be...

Data Table 2: Sodium Hypochlorite SDS information Items Physical State Route of Exposure & Symptoms Protective Equipment First Aid Procedures Fire-fighting Measures Chemical Reactivity Safe Storage...

Which of the following chemical equations violates the Law of Conservation of Mass? 2 H + O2 2 HO NaCl + KBr NaBr + KCI 2 H + N HCI + KOH co P 2 NH3 HO + KCI

The lift cage in Figure No2 is hoisted by means of a rope wound round a 0.344 [m] diameter drum. The number of teeths per gear are: Gear Nel is 20. Gear Ne3 is 25, Gear Ne4 is 75. Gear Ne5 is 35....

Design a neural network to solve the XOR problem, i.e. the network should output 1 if only one of the two binary input variables is 1, and 0 otherwise (see in Figure 1a). Use the hyperbolic tangent,...