DorothyMe12 DorothyMe12

19-04-2022
Chemistry

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What volume of water is used to prepare a 3.5 M solution if 45 grams of Na2CO3 is used?

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jsimpson11000 jsimpson11000

19-04-2022

Answer:

121.3 ml

Explanation:

Mole wts

Na 22.989 x 2

C 12.011

O 15.999 x 3 total = 105.986

45 grams is 45/105.986 of a mole

45/105.986 in one liter would be .424584 M

.424585 mole / x liter = 3.5

x = .1213 liter = 121.3 ml

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