4- 1 mol de moléculas tem 6,02.10²³
2/3 de mol tem 4.10²³
a) 1 mol de h20 - 18g - 6,02.10²³
18g - 6,02.10²³
xg - 4.10²³
x = 11,96g
b) 1 mol - 6,02.10²³
2/3 mol - x
x = 4,01.10²³ moléculas
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4- 1 mol de moléculas tem 6,02.10²³
2/3 de mol tem 4.10²³
a) 1 mol de h20 - 18g - 6,02.10²³
18g - 6,02.10²³
xg - 4.10²³
x = 11,96g
b) 1 mol - 6,02.10²³
2/3 mol - x
x = 4,01.10²³ moléculas