Question

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

please help!

Answer 1

2.0 g Na

Step-by-step 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