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what is the mass of Na2CO3 needed to contain 15 grams of sodium?
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1 mole Na2CO3 has a mass of 106 grams and contains 46 g Na.
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269 mL of a 0.2089 M sodium carbonate (Na2CO3) solution is prepared and labelled solution A. Calculate the mass (in grams) of
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how many grams of sodium carbonate are needed to prepare 0.250 L of an 0.100 M aqueous solution of sodium ions?
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