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  • 12-01-2024
  • Chemistry
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A+ student measures 1.5815 g of a mixture of sand and sodium carbonate, which is later determined to be 30.81% sand. What mass of Na2CO3 was in the original mixture?
a) 0.958 g
b) 1.162 g
c) 2.302 g
d) 4.588 g

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