4.3 – Gram/Mole conversion practice
Review
1. Calculate the average atomic mass for the 3 isotopes of Magnesium: Magnesium-23 (23.51 amu, 32.16%),
Magnesium-24 (24.31 amu, 62.14%), and Magnesium-25 (25.24 amu, 5.70%).
2. What is the mass in grams of 2.17 mol of Cr?
3. You ran an experiment and produced 11.9 g of Al. How many moles of aluminum were produced?
4. If you produced 2.67 g of C by exhaling, how many moles of carbon did you produce?
Practice Problems
1) 25.2 g Na = _____________ mol Na
2) 3.1 mol Li = _____________ g Li
3) 12.8 g Ar = _____________ mol Ar
4) 6.12 mol Ni = ______________ g NI
5) 9.15 g Cr = ________________ mol Cr
6) .074 mol B = _______________ g B
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