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Calculate the number of grams in sodium in 7.6g of Na2C6H6O7 (sodium hydrogen citrate) express your answer using two significant figures

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linahamdan1980

Answer:

Explanation:

the molecular mass of Na2C6H6O7 =236 g\mole it has a sodium that has 23 g/mole so 7.6 g of Na2C6H6O7 has x of sodium mass

  236 g/mole ⇒  23g/mole

  7.6 g  ⇒    ˣ    

7.6 x 23 ÷ 236  = 74.07×10-2 grams of sodium

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