oblicz masę : a) 2,5 mola H2O B) 4,3 mola atomów magnezu
a)
1 mol ---- 18g
2,5 mola ---X
X=45g H2O
b)
1 mol ---- 24g Mg
4,3 mola --- X
X=103,2g Mg
a)1mol H2O =18g/mol2,5*18=45g/molb)1mol Mg= 24g/mol4.3*24=103,2g/mol
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a)
1 mol ---- 18g
2,5 mola ---X
X=45g H2O
b)
1 mol ---- 24g Mg
4,3 mola --- X
X=103,2g Mg
a)1mol H2O =18g/mol
2,5*18=45g/mol
b)1mol Mg= 24g/mol
4.3*24=103,2g/mol