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2014-05-01T15:42:33+03:00
A)Masa molara MgCl2=1*24+2*35.5=95g
1mol................95gMgCl2
x.....................19g MgCl2
x=1*19/95=0.54moli
b)Masa molara Ca(OH)2=1*40+2*16+2*1=74g
1mol.....................74gCa(OH)2
x...........................444gCa(OH)2
x=1*444/74=6moli Ca(OH)2
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