How many atoms of chlorine are there in 400 grams of magnesium chloride
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Answer:
Magnesium chloride : Mgcl²
Total no of atoms = 3
No of chlorine atoms = 2
Molecular mass = 95u
Moles of MgCl² in given sample
= 400 g / 95
= 4.21 mole.
Moles of Cl atoms in given sample
= 2 x 4.21
= 8.42 mole.
No of chlorine atoms
= 8.42 mole x 6.022 x 10²³/ mole
= 5.070 x 10²⁴
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