The ratio by mass for magnesium and sulphur in Magnesium sulphide is given as 3 : 4.Calculate the ratio by number of atoms for Magnesium sulphide
(Atomic mass of Mg=24, S=32) ....PLS ANSWER FAST!!!!!
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The ratio of Mg : S in magnesium sulphide should be 4:3 and Not 3:4.
Mg:S = 24x4 : 32x3 (multiplying by respective atomic masses)
= 96 g : 96 g
As they are reacting in 1:1 ratio of weights , their atoms will also be present in 1:1 ratio.
Thus molecular formula will be MgS
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