3 February, 15:36
Determine the number of grams of NaCl necessary to make up 100 mL of a 0.10 M solution.
3 February, 16:03
Molarity is obtained by dividing the number of moles by the volume of the solution in liters. Therefore, the number of moles is the product of molarity and volume.
n = (100 mL) x (1 L / 1000 mL) x (0.10 M) = 0.01 moles
Multiply this value with the molar mass of NaCl to obtain the amount of substance in mass,
m = (0.01 moles) x (58.45 g / mol) = 0.5845 g
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» Determine the number of grams of NaCl necessary to make up 100 mL of a 0.10 M solution. 0.017 g 0.58 g 1.7 g 58 g