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Calculate the number of grams in sodium in 8.4g of Na2C6H6O7 (sodium hydrogen citrate) express your answer using two significant figures


please help!

Calculate the number of grams in sodium in 84g of Na2C6H6O7 sodium hydrogen citrate express your answer using two significant figures please help class=

Respuesta :

Answer:

2.0 g Na

Explanation:

Stoichiometry.

8.4g sodium hydrogen citrate x (1 mol sodium hydrogen citrate / 192 g sodium hydrogen citrate) x (2 mol Na/1 mol sodium hydrogen citrate) x (23g Na/1 mol Na)

^write it out it makes more sense that way

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