Answers

2015-07-16T21:45:36+08:00
4.2580 first i change  to decimal then i divide the following solute and solvent
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2015-07-21T20:18:36+08:00
0.4258 
Make 5.28% a decimal, then it will be .0528, then divide it by 12.4 grams, the answer will be .004258 and so on, then multiply it by 100, then cut it to four decimal numbers, and you will get 0.4258.
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