Prepare one molar solution of NaCl:

Prepare one molar solution of NaCl.

Solution:

a) Compute the molecular weight of the salt

1 atom of Na =                      22.989 amu

1 atom of Cl  =                      35.453 amu

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1 molecule of NaCl  =          58.442 amu

One mole is equivalent to the gram molecular weight, then one mole = 58.442 grams.

b) 58.442 grams of NaCl is weighed out and enough water is added to bring the solution to one liter.