How many moles of SiO2 are there in a quartz crystal (SiO2) that has a mass of 42.0g? ___ moles
Added by Katie S.
Step 1
First, we need to find the molar mass of SiO2. The molar mass of Si is 28.09 g/mol, and the molar mass of O is 16.00 g/mol. So, the molar mass of SiO2 is: Molar mass of SiO2 = (1 × 28.09 g/mol) + (2 × 16.00 g/mol) = 28.09 g/mol + 32.00 g/mol = 60.09 g/mol Show more…
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