CP Even More Mole Massing Of Elements HW

ChemistryWiki | RecentChanges | Preferences

Chemistry - CP Even More Mole Massing of Elements HW
Answer the following using the appropriate equation or using dimensional analysis. Show all work, cancel units, etc.

1. If I weighed out 0.562 grams of Sn (Tin), how many moles of Tin do I have?

2. How many grams in 0.0617 moles of Se (Selenium)?

3. If I weighed out 0.418g of Si (Silicon), how many moles of Si do I have?

4. If I have weighed out 2.57 kilograms of Kr (Kryton), how many moles of Kr do I have?

5. How many grams of Ar (Argon) do I need to mass out to obtain 0.0361 moles of Ar?

Answer: 1) 0.00472mole Sn (4.72E-3mole Sn) 2) 4.87g Se 3) 0.0149moles Si 4) 30.6mole Kr 5) 1.44g Ar