One Step Mole Calculation Handout 1

All work on separate sheets where no more than 4 problems on a page (a page is both sides).


1. How many moles are there in 27.2 grams of potassium(K)?

2. What is the molar mass of C₆H₁₂O₆?

3. What is the mass of 0.243 moles of C₆H₁₂O₆?

4. How many molecules of C₆H₁₂O₆ are in 0.40 moles of C₆H₁₂O₆?

5. How many grams are there in 106.2 moles of Pb₁O₂?

6. I have 2.0X10²² (2.0E22) molecules of C₁O₂, how many moles of C₁O₂ do I have?

7. How many grams are there in 0.20 moles of C₂H₃N₂?

8. How many moles in 2.45E24 molecules of tetranitrogen pentachloride (N₄Cl₅)?

9. How many formula units in 0.46 moles of Mn₁Br₂?

10. What volume does 42.4 moles of fluorine gas (F₂) occupy at STP?

11. How many moles of O₂ are in 56.3 liters of O₂ (a gas) at STP?

12. What is the volume of 45.3 moles of any gas at STP?

13. How many mole are there in 4.20E18 f.u. of Al₁Br₃?















Answer
1. 0.697 mole K
2) 180.g C₆H₁₂O₆
   1 mole C₆H₁₂O₆

3. 43.7g C₆H₁₂O₆
4. 2.4E23 molecules C₆H₁₂O₆
5. 2.538E4g Pb₁O₂
6. 3.3E-2 mole C₁O₂
7. 11g C₂H₃N₂
8. 4.07 moles N₄Cl₅
9. 2.8E23 f.u. Mn₁Br₂
10. 950. L F₂ at STP
11. 2.51 moles O₂ at STP
12. 1.01E3 L gas at STP
13. 6.99E-6 mole Al₁Br₃