Question

Answer the following questions below including your solution.

2. Find the mass of 0.25 moles of the following substances

a. K2CrO4 c. SiH4

b. CH4 d. AlPO4 e. Ba(OH)2

3. How many moles are in 250 grams of

a. PbSO4 c. CH3CHO

b. Fe2O3 d. CH3CH2OH

4. Calculate the mass in grams of one molecule of

a. Bromine, Br c. Water, H2O

b. Sulfur, S8 d. Carbon disulfide, CS3

Answer 1

a)48.5g

b) 4g

c) 8g

d) 30.5g

e) 42.75g