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OpenStudy (anonymous):
How many grams of potassium chloride are in 6.90 moles? 10.8g 74.6g 257g 514g
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OpenStudy (anonymous):
@isherron
OpenStudy (anonymous):
514g
OpenStudy (anonymous):
how did you come to that answer?
OpenStudy (nechirwan):
1 mole of KCl = 39+35.5 = 74.5g so moles : grams 1 : 74.5 6.9 : ? ? = 6.9 X 74.5 = 514.05
OpenStudy (anonymous):
(Mols of substance)(Molar mass of substance/1mol) (6.90 mols)(74.55 g KCl/1 mol)
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OpenStudy (anonymous):
Thanks :)
OpenStudy (nechirwan):
welcome ^_^
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