Question

1. Predict the products of the following reaction:

Sn(s) + ZnCl2(aq) -->

a.ZnSn(s) + Cl2(g)

b.	ZnSnCl4(aq)

c.	SnCl2(aq) + Zn(s)

d. No reaction will occur

2. NaClO is commonly used as bleach. The following is a sample reaction of NaClO. What is the oxidizing agent in this reaction?

3NaClO + H2S --> 3 NaCl + H2O + SO2

a.NaCl

b.

NaClO

c.

SO2

d.

H2S

3. When acetic acid, CH3COOH, is dissolved in water, what is the major species (highest concentration) in the solution? Please do not consider water itself.

a.	CH3CO+ and OH-

b.

CH3COOH

c.	H+ and CH3COO-

d.	CH4 and CO2

4. What is the oxidation state of N in AgNO3?

a.

+1

b.

+3

c.

-1

d.

-3

e.

+5

5. Aluminum has a specific heat of 0.91 J/(gC). If 60.6 g of an aluminum block, initially at 20.0 C, absorbs 300.0 J of heat, what is its temperature?

Note: To avoid any sig fig issues, please keep 1 decimal place for your input!!

6.100.0 mL of 1.00 mol/L NaOH reacted with 55 mL of 1.00 mol/L CH3COOH solution and the temperature increased from 20 to 22 C. How many moles of NaOH and CH3COOH are neutralized?

Note: to avoid any sig fig issues, please use regular decimal instead of scientific notation and keep 3 sig figs for your input!!

7.Equal mass of water and iron are mixed in a perfect calorimeter and allow heat to exchange until thermal equilibrium is achieved. If the initial temperatures of water and iron are 20 C and 80 C respectively, which one is correct about the final temperature?

a.	It will be between 20 C and 50 C and is just slightly lower than 50 C

b.	It will be between 50 C and 80 C

c.	It will be between 20 C and 50 C but probably is much closer to 20 C than 50 C

d.	It will be exactly 50 C

Answer 1

Dear Student, Kindly refer to the solution of first 4 questions (as per protocol). Feel free to ask if you face difficulty in understanding any step of the solution attached, so that we can assist you in a better way.