How many grams of the molecule hydrochloric acid are needed to make a solution of 2 molar? 2.5 M? 0.5nM?

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How many grams of the molecule hydrochloric acid are needed to make a solution of 2 molar? 2.5 M? 0.5nM?

2007-09-12 06:34:41 · 1 answers · asked by Ron H 1 in Science & Mathematics ➔ Chemistry

1 answers

I can only suppose you want to make1.00 L. Let the solution be called S

Atomic weights: H=1 Cl=35.5 HCl=36.5

1.00LS x 2molHCl/1LS x 36.5gHCl/1molHCl = 73.0g HCl

For 2.5M, use 2.5molHCl/1LS; for 0.5M, use 0.5molHCl/1LS

2007-09-12 06:52:56 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋