W naczyniu znajduje się 1,204 x 10²³ atomów siarki .
Oblicz, ile to moli.
1mol S -------------- 6,02*10²³ at.
xmol S -------------- 1,204*10²³ at.
x=1mol*1,204*10²³/6,02*10²³
x=0,2mol
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1mol S -------------- 6,02*10²³ at.
xmol S -------------- 1,204*10²³ at.
x=1mol*1,204*10²³/6,02*10²³
x=0,2mol