General Chemistry Answers

A solution is prepared with [V

3+

] = [Cr

2+

] = 0.0100 M. and [V

2+

] = [Cr

3+

] = 0.125 M The

following reaction occurs.

𝑉

3+(𝑎𝑞) + 𝐶𝑟

2+(𝑎𝑞) ⇆ 𝑉

2+(𝑎𝑞) + 𝐶𝑟

3+(𝑎𝑞) 𝐾𝑐 = 7.2𝑥102

What are the concentrations of the participating species when equilibrium is

reached?

Arrange the following according to decreasing intermolecular force of attraction. Explain your answer.

1. Water
2. barium chloride
3. phophorus trichloride
4. bromine

How will the volume of 0.50 mol of gas behave if the temperature is raise from 30°C to 60°C at constant pressure?

Calculate the gross and net calorific values of coal having the following

compositions, carbon = 85%, hydrogen = 8%, sulphur = 1%, nitrogen = 2%,

ash = 4%, latent heat of steam = 587 cal/gm

Determine the mass in grams of the substance with 1.25 mol Mg

Calculate the molecular mass of Vitamin C

2. What temperature on the Kelvin scale corresponds to – 25oC?

what is the dominant intermolecular force for each mixture?

NaCl/water 

naphthalene/kerosene 

napthalene/acetone 

Kerosene/acetone 

kerosene/ethanol 

Ethanol/water 

zinc and sulfur react to form zinc sulfide. if 6.00g of zinc react with 9.00g of sulfur, how many grams of zinc sulfide will form

What volume of hydrogen gas at 35.0℃ and 106.6 kPa is needed to react completely with 120.0 g of tin to form tin (IV) hydride?