Răspuns:
se aplica formulele
niu=m/miu niu=N/N,A
miuH2SO4=98g/mol
m= niuxmiu=3x98g=....
miu,HCl= 36,5g/mol
m=niuxmiu=0,5x36,5g=,,,,,,
niu=N/N,A= 2,4085x10²³/6,022x10²³mol= 0,4molH2O
miu,H2O=18g/mol
m= niuxmiu=0,4x18g=.........
miu,NaCl= 58,5g/mol
m= niuxmiu=0,25x58,5g=....
miu,CaCO3=100g/mol=100kg/kmol
m= niuxmiu= 7,5x100kmol=
niu=N/N,A= 9,033X10²³/6,022X10²³mol=1,5molCl2
miu,Cl2= 71g/mol
m= niuxmiu=1,5x71g=.........
finalizeaza calculele acolo unde am lasat puncte-puncte
Explicație: