sarahaf04 sarahaf04

23-03-2020
Chemistry

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Suppose that you massed out 3.50 g of sodium carbonate, Na2CO3. How many moles would you have?

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hollandgrzesiak hollandgrzesiak

23-03-2020

Answer: 0.0330 moles Na2CO3

Explanation: You divide 3.50 grams by the molar mass of Na2CO3, which is 105.99 g/mol. The grams will cancel out and you're left with 0.0330 moles NA2CO3. The answer will have 3 sig figs.

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