M(Ca)=40g
K(-) Ca²⁺ + 2e -->Ca
A(+) 2F⁻ -->F₂ + 2e
40g Ca --------------- 22,4dm³ F₂
xg Ca ---------------- 1,12dm³ F₂
xg=40g*1,12dm³/22,4dm³
xg=2g wapnia
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M(Ca)=40g
K(-) Ca²⁺ + 2e -->Ca
A(+) 2F⁻ -->F₂ + 2e
40g Ca --------------- 22,4dm³ F₂
xg Ca ---------------- 1,12dm³ F₂
xg=40g*1,12dm³/22,4dm³
xg=2g wapnia