How do heat treatments affect the hardness and impact properties (microstructure)?

Draw the reaction mechanism that shows BH3 adding to the alkene. Why do we get the anti-Markovnikov product?

Which of the following represent a valid set of quantum numbers?
n = 1, l = 0, ml = -1, ms = +1/2
n = 3, l = 2, ml = -2, ms = -1/2
n = 2, l = 2, ml = -1, ms = +1/2
n = 2, l = 1, ml = 0, ms = 0
n = 2, l = 1, ml = 0, ms = -1/2

Show that in a cubic crystal [HKL] direction is always perpendicular to a plane whose Miller indices are (HKL). Show the general proof and not example of specific plane and direction.

1. Show the reaction, along with the transition state (‡), between 2-methyl-2-pentene and BH3 in THF. Then, show the subsequent reaction of the organoborane intermediate with H2O2 and OH-1. Explain why hydroboration is non-Markovnikov and forms a 2o alcohol. Refer to hydroboration in the chapter notes, the handout for example 8.2, and figure 8.4 in text. (2 pts)

Using Stoichiometry,calculate the mole quantity of hydrogen gas produced for each data point in Part A and Part B of this experiment using your data. Identify the concentration of HCl (part A) or mass of magnesium (part B)for when the limiting reactant changes. All calculations must be shown.

Part A

1. )0.250 g Mg

2. )0.50 M

3. )1.0 M

4. )1.5 M

5.) 2.0 M

6.) 2.5 M

7.) 3.0 M

8.) 3.5 M

PART B

1. 2.0 M HCl -Entre moles of calculated moles of H2 (g) from Part A.

2. 0.050 g

3. 0.10 g

4. 0.15 g

5. 0.20 g

6. 0.25 g -enter moles of calculated moles of H2 (g) from Part A.

7. 0.30 g

8. 0.35 g

9. 0.40 g

http://tinypic.com/r/kah0rt/9 Here is the data page. I hope the data page is legible!

PLEASE HELP! Even if you could just explain the process for just one of them that would be helpful. I assume once you get the first one the other ones should follow the same method of solving. I would really appreciate anyone's help as soon as possible.

A gas has a volume of 4.70 L at 0 ∘C. What final temperature, in degrees Celsius, is needed to change the volume of the gas to each of the following, if n and P do not change?

a) 1.60 L

b) 1800 mL

c) 51.0 mL

Given:

AgBr_(s) <--> Ag⁺_(aq) + Br ^-_(aq)

and

Ag⁺_(aq) + 2NH_3(aq) <--> Ag(NH₃)₂⁺_(aq)

a) What would be the value of K for AgBr_(s) + 2NH₃(aq) <--> Ag(NH₃)₂⁺_(aq) + Br ^-_(aq) ?

b) What would be the molar solubility of silver bromide in 2.00 M aqueous ammonia?

A 0.1276−g sample of a monoprotic acid (molar mass = 1.10 × 102 g/mol) was dissolved in 25.0 mL of water and titrated with 0.0633 M NaOH. After 10.0 mL of base had been added, the pH was determined to be 4.87. What is the Ka for the acid? Answer in scientific notation.

How do you read infrared spectrometry graphs and determine the types of bonds that are shown at each peak? Also, how would you read a graph and determine which compound is being shown?

Suppose 3 large tankers containing liquefied natural gas (LNG) leave a gas export terminal every day. The methane is stored in liquid form in the tankers, at -260°F, in a volume 600 times smaller than would be needed in gas form, at STP (Standard Temperature and Pressure: 0°C temperature, 1 atm pressure). Suppose the average tanker at this port carries an amount of LNG equivalent to 125 million cubic meters of methane at STP. The energy content of methane is 38.5 MJ per cubic meter at STP. How many gigawatts (GW) of power does this daily flow of natural gas through the port represent?

Sorbose, C6H12O6, is a carbohydrate used in the manufacture of vitamin C. A lab supervisor at Vital C Pharmaceuticals, Inc. suspected that an employee had sabotaged the production line by substituting xylitol, C5H12O5, a sweetener for "sugar-free" gum, for sorbose. Combustion analysis of the white powder found in the production line and in the employee's possession gave the following results: %C = 39.47; %H = 7.95; %O = 52.58 Was the employee guilty of sabotage and thus should the employee be fired for sabotage?

Consider the titration of a 26.0-mL sample of 0.175 M CH3NH2 with 0.155 M HBr. (The value of Kb for CH3NH2 is 4.4×10−4.)

A. Determine the initial pH.

B. Determine the pH at 6.0 mL of added acid.

C. Determine the pH at one-half of the equivalence point.

D. Determine the pH after adding 4.0 mL of acid beyond the equivalence point.

Which of the following will increase the number of theoretical plates in a chromatographic separation? Select all that are appropriate.

1. After glycogen reserves are depleted what are the major gluconeogenic precursors of glucose under the conditions of

A. starvation

B. intense exercise