How many grams of a solution of sodium chloride, NaCl, with a concentration of 6.344e+4 ppm...
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How many grams of a solution of sodium chloride, NaCl, with a concentration of 6.344e+4 ppm...

[From: ] [author: ] [Date: 12-02-02] [Hit: ]
16-g / 0.06344 = 128.......
How many grams of a solution of sodium chloride, NaCl, with a concentration of 6.344e+4 ppm would need to be weighed to obtain 8.16 g of sodium chloride, NaCl, from the solution?

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A concentration of 6.344 x 10^4 ppm is 6.344 x10^4 / 1 x 10^6 = 0.06344. This number is a pure ratio expressing the amount of NaCl relative to 1 unit of solvent - it has no units. To determine the quantity of this concentration that would be needed to obtain a mass of 8.16-g divide the concentration into the needed mass: 8.16-g / 0.06344 = 128.6-g
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