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a) H2SO4 = 2(1)+32+4(16) = 98g/mol
n=m/MM
n= 19,6/98
n= 0,2mol
b) C6H12O6 = 6(12)+12(1)+6(16) = 180g/mol
n= 18/180
n= 0,1mol
c) Ca(OH)2 = 40+ 2(16)+2(1)= 74g/mol
n= 18,5/74
n=0,24mol
d) C12H22O11 = 12(12)+22+11(16)=342g/mol
n= 20,52/342
n=0,06mol
n=m/MM
n= 19,6/98
n= 0,2mol
b) C6H12O6 = 6(12)+12(1)+6(16) = 180g/mol
n= 18/180
n= 0,1mol
c) Ca(OH)2 = 40+ 2(16)+2(1)= 74g/mol
n= 18,5/74
n=0,24mol
d) C12H22O11 = 12(12)+22+11(16)=342g/mol
n= 20,52/342
n=0,06mol
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