oblicz ile moli stanowi 3,2g siarki , 6g wody , 12 g magnezu , 12,6g kwasu azotowego (v) , 11g tlenku węgla (IV)
3,2g siarki m=3,2g S M=32g/mol m=n*M po przekształeceniu n= M/m n=32g/mol / 3,2g =10moli6g wody m=6g H2O M= 2*1g/mol+16g/mol=18/gmol n=M/m n=18g/mol / 6g=3mole19g magnezu m=12g Mg M=24g/mol n=M/m n=24g/mol / 12g= 2mole12,6g kwasu azotowego (V) m=12,6g HNO3 M=1g/mol+ 14g/mol+3*16g/mol=63g/mol n=M/m n=63g/mol / 12,6g= 5 moli11g tlenku węgla (IV) m=11g CO2 M=12g/mol+2*16g/mol=44g/mol n=M/m n=44g/mol / 11g=4 mole
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3,2g siarki
m=3,2g S M=32g/mol
m=n*M po przekształeceniu
n= M/m
n=32g/mol / 3,2g =10moli
6g wody
m=6g H2O M= 2*1g/mol+16g/mol=18/gmol
n=M/m
n=18g/mol / 6g=3mole
19g magnezu
m=12g Mg M=24g/mol
n=M/m
n=24g/mol / 12g= 2mole
12,6g kwasu azotowego (V)
m=12,6g HNO3 M=1g/mol+ 14g/mol+3*16g/mol=63g/mol
n=M/m
n=63g/mol / 12,6g= 5 moli
11g tlenku węgla (IV)
m=11g CO2 M=12g/mol+2*16g/mol=44g/mol
n=M/m
n=44g/mol / 11g=4 mole