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How many grams have 3 moles of C2H6?
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How many grams have 3 moles of C2H6?

User Bdrajer
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mC2H6: (12g×2)+(1g×6) = 30 g/mol

1 mol ------- 30g
3 mol ------ X
X = 3×30 = 90g

:)
User Ajeh
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