M,KClO3= 122,5g/mol
M,KCl= 74,5g/mol
niu,clorat= m/M= 4,9g/122,5g/mol=0,04mol
deduc moli si mase de produsi de reactie:
1mol.............1mol........1,5mol
KClO3-------> KCl + 3/2O2
0,04mol.....x=0,04mol...y=0,06mol
m,KCl= niuxM= 0,04X74,5 g=......................calculeaza !!
m,O2=1,5X32g=........................calculeaza !!!
din ecuatia chimica deduc moli clorat
1mol clorat.......1,5mol O2
x..............................0,2
x= 0,2/1,5molO2=.........................CALCULEAZ A!!!!!