PISQ Cambridge Branch
Chemistry Worksheet
1. How many moles of Ca3(PO4)2 are in 57.82 grams?
2. How many moles of Mg(NO3)2 are in 487.6 grams?
3. How many moles of Ca(OH)2 are in 5.62 g of Ca(OH)2?
4. How many grams of Zn(OH)2 are in 3.67 moles?
5. Calculate the number of moles in 60 g of sodium hydroxide.
6. What is the mass of 0.5 moles of CuSO4.5H2O?
7. How many moles are present in 12.4 g of calcium carbonate?
8. What is the mass of 0.5 moles of sulfur?
9. Calculate the number of moles in 126 g of MgSO4.7H2O.
10. Write down the formulae of following acids and complex ions
I.
II.
III.
IV.
V.
VI.
VII.
VIII.
IX.
X.
Nitric acid
Phosphoric acid
Sulfuric acid
Hydrochloric acid
Phosphate ion
Sulfate ion
Nitrate ion
Carbonate ion
Hydroxide ion
Ammonium ion