1 2 3 4
g/mol mol ml g M1
Se cere: Se cere: Se dă: Se dă: Se dă:
Ex. Formula M cM Vs md 1000 ml soluţie .cM M
Ex.1 H2SO4 98 1 2000 196 Vs ml soluţie..md formula 1
Ex.2 NaOH 40 1 2000 80
Ex.3 HNO3 63 2 1000 126 M = ? g/mol
Ex.4 HCl 36.5 0.2 1000 7.3
Ex.5 HCl 36.5 1 1000 36.5 Calcule:
Ex.6 KOH 56 2 1000 112
Ex.7 HNO3 63 0.5 1000 31.5 M = 1000 md / cMVs formula 1
Ex.8 KOH 56 0.05 1000 2.8
Ex.9 NaOH 40 0.2 2000 16
Ex.10 H2SO4 98 0.1 500 4.9