1. Test Review Mole Concept

2. Which of these is true? A. Different substances with the same number of moles have the same mass. B. One mole of any substance contains the same number of particles. C. Mole is a unit of energy. D. One mole of any substance contains 6.02 x 10 21 particles. B

3. What is the molecular mass of C 4 H 10 ? 58 amu

4. What is the molar mass of HNO 3 ? 63 g

5. 5.00 moles How many moles are there in 60.0 g of carbon?

6. How many particles are there in 0.25 moles of a substance? 1.5 x 10 23 particles

7. What is the mass of 6.02 x 10 23 molecules of CO 2 ? 44 g

8. Which is equal to 45 g of H 2 O? A. 1 mole B. 1.5 moles C. 2.0 moles D. 2.5 moles D

9. What is the molar mass of CaCl 2 ? 110 g

10. What is the mass of 0.75 moles of CaCl 2 ? 83 g