Problem: 1. How many moles of Ni are there in a sample that contains 15.8 grams of nickel? 2. How many grams of nickel are there in a sample that contains 1.22 mol of Ni?

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Use the mole concept and atomic mass of Ni to calculate mass and moles vice versa

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Problem Details

1. How many moles of Ni are there in a sample that contains 15.8 grams of nickel? 

2. How many grams of nickel are there in a sample that contains 1.22 mol of Ni?