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Calculate the molarity it’s, M, if a solution prepared by dissolving 20 g of NaCl in 1 L of water.
Solve-step-by-step

Sagot :

Answer:

.3422 M

Explanation:

Mole weight of NaCl ( from periodic table) = 58.439 gm/mole

20 g is how many moles ?      20 g / 58.439 gm/mole=.3422 mole

.3422 mole / 1 liter .3422 M

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