1. Oblicz masę 6 moli cząsteczkowych azotu. 2. Jaką liczbę moli stanowi 14,8g wodorotlenku wapnia?
zad.1
M(N₂)=2*14g/mol=28g/mol
28g ----------- 1mol
xg ------------ 6mol
xg=28g*6mol/1mol
xg=168g
zad.2
M(Ca(OH)₂)=40g/mol+2*16g/mol+2*1g/mol=74g/mol
74g ------------ 1mol
14,8g ----------- xmol
x=14,8g*1mol/74g
x=0,2mol
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zad.1
M(N₂)=2*14g/mol=28g/mol
28g ----------- 1mol
xg ------------ 6mol
xg=28g*6mol/1mol
xg=168g
zad.2
M(Ca(OH)₂)=40g/mol+2*16g/mol+2*1g/mol=74g/mol
74g ------------ 1mol
14,8g ----------- xmol
x=14,8g*1mol/74g
x=0,2mol