What is the mass of sodium (Na) in 50 grams of table salt (NaCl) ? Show your work.

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Chemistry

Mckinley Chen

2 December, 19:46

What is the mass of sodium (Na) in 50 grams of table salt (NaCl) ? Show your work.

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Answers (1)

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Emily Mcgee · Answer 1

The average atomic mass of sodium is 22.99. The average atomic mass of chlorine is 35.451. NaCl has one of each, which adds up to atomic mass of 58.441 atomic mass units. To find out how much of that is sodium, do 22.99:58.441. you get 0.3933. So you know in any amount of NaCl, sodium makes up 39.33%. 39.33% of 50 is 19.665 g, so the answer is 19.665 g.