find gram atomic mass of 142g of chlorine (mass = 35.5) with explaination
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no. of moles = 142/35.5= 4
no. of atoms= 4×6.023×10^23
=24.09×19^23
=2.409×10^24
where , 35.5 is the atomic mass of the chlorine
Explanation:
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Molar mass is the mass of one mole of a substance.
The molar mass of chlorine gas (Cl2):
2×35.5 g Cl/mol Cl = 71.0 g Cl2/mol Cl2.
The mass of 2 moles of Cl2:
2 mol Cl2 × 71.0 g Cl2/mol Cl2 = 142 g Cl2.
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The molar mass of chlorine gas (Cl2):
2×35.5 g Cl/mol Cl = 71.0 g Cl2/mol Cl2.
The mass of 2 moles of Cl2:
2 mol Cl2 × 71.0 g Cl2/mol Cl2 = 142 g Cl2.
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