What is mole ? Calculate the number of moles of k2 gram of helium find molar mass?
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The mole is the unit of measurement for amount of substance in the International System of Units. The mole is defined as the amount of a chemical substance that contains exactly 6.022 × 10²³ constitutive particles, e.g., atoms, molecules, ions or electrons.
since 4 g of helium has = 1 mol
so 2 g of helium has = 0.5mol
Molar Mass of helium is 4 a.m.u
since 4 g of helium has = 1 mol
so 2 g of helium has = 0.5mol
Molar Mass of helium is 4 a.m.u
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