Reference no: EM132526856
You must show your work for all questions:
1. If a container at STP can hold 4.25L of HCl gas, determine the mass of HCl gas it can hold.
2. Determine the molar mass of:
a) Iron
b) Chlorine
c) Iron II nitrate
d) aluminum sulphate
e) C 12 H 22 O 11
3. How many grams would 8.1 ? 10 21 molecules of sucrose (C 12 H 22 O 11 ) weigh?
4. How many grams of AgNO 3 are required to make 25 mL of a 0.80M solution?
5. How many moles are in 53.8 g of magnesium chloride?
6. What volume of 0.15M SrSO 4 can be made from 23.1 grams?
7. Find the molarity of a 2.50 L solution containing 7.0 g of potassium fluoride.
8. How many formula units (molecules of ionic compound) are in 0.845 moles of NaNO 3 ?
9. How many grams of aluminum chloride are required to make 0.50 L of a 1.0M solution?
10. How many formula units are in 50.0 g of calcium sulfide?
11. Find the molarity of an 85.0 mL solution containing 2.6 g of ZnCl 2.
12. How many atoms are in a 2.0 kg ingot of gold? (Note mass units.)
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