Chemistry Answers

What is the freezing point depression of an aqueous solution that contains 3m of ionic solute CaCl2 per 1 kg of water. The freezing point depression constant for water is -1.86 degree Celsius per mole (* CaCl2 dissociates into 3 ions)

Cyclopentaethiol has a markedly lower melting point than cyclopentanol even though, it has a higher molecular weight. Explain

Does sodium chloride dissolve in aqueous copper chloride?

Does Copper dissolve in aqueous copper chloride? If so what is the separation method?

How many molecules are in 5 moles of ammonia, NH₃?

 How many grams are in 238 moles of arsenic? The atomic mass of arsenic is 33 g.

calculate the volume that will be occupied by 20.0g carbon dioxide at 25 degree celcius and 1.25 atm.

To make a solution, 38.7 g of a nonelectrolyte is dissolved into 218 g of water. The freezing point of the solution is measured to be -5.53°C. Calculate the molar mass of the solute.

the percentage of oxygen in(

N

H

4

)

2

S

O

4

(NH4)2SO4

1. What volume of 0.596 M HCI is required to neutralise 30.0 ml of 0.809 M sodium Hydroxide?

2. Nitric acid, HNO3 is extensively used in the manufacture of fertilizer. A bottle containing 75.0 mL of nitric acid solution is labeled 6.0 M HNO3.

a. How many miles of HNO3 are in the bottle?

b. A reaction needs 5.00g of HNO3. How many mL of solution are required?

c. 10 mL of water are added to the solution. What is the molarity of the resulting solution?