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.