Two Step Mole Problems Handout 3

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Two Step Mole Problems Handout 3

Answer the following problems show all work. For the purpose of this handout, all gases are assumed to be at STP (standard temp & pressure).

Answers should be completed on separate sheets (no more than 5 problem per sheet.) In other words, need to complete work on 2 or more sheets of paper ( a sheet of paper is front and back.)

1. How many liters @STP of F₂ if I have 56.1g of this compound.

2. How many atoms of Neon if I have 121L of this element @STP?

3. What is mass (in kg) do I have to weigh out to get 9.21E24 molecules of Heptasulfur tribromide?

4. How many formula units of Tin (IV) sulfate do I have if I have 79.2g of this compound?

5. What is volume (in L) of 5.05E24 atoms of Helium gas (@STP).

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6. How many formula units are in 25g of NaOH

7. What is the mass of 2.3E21 molecules of SiH₄?

8. What is the volume of 4.5E24 molecules of hydrogen gas?

9. How many grams are there in 5.45E24 f.u. BaCl₂?

10. How many f.u. in 1.00kg of calcium nitrate?