1)
10·0.1g x g
NaCl + AgNO3= AgCl↓+NaNO3
58.5g 143.5g
mNaCl=10·0.1=1g
x=1·143.5/58.5=2.45g
2)
10·0.1g 5·0.2g xg
NaCl + AgNO3 =AgCl↓ +NaNO3
58.5g 170g 143.5g
mNaCl=10·0.1=1g
mAgNO3=5·0.02=0.1g
vNaCl=1/58.5=0.02mol (v isbytke)
vAgNO3=0.1/170=0.0005mol (v nedostatke)
x=0.1·143.5/170=0.08g