Question

Define mole. How many grams of sodium will have same number of atoms as 6 grams of magnesium?

Answer 1

mole is the quantity in number having a mass equal to its atomic or molecular mass in grams

Magnesium Atomic no. 12

therefore, 1mol of MG=24g

now mol= given mass/molar mass

=6/24

=0.25 mol

now Sodium Atomic no. =11

therefore, 1mol of Na=23g

givemass= mol * molar mass

=o.25 * 23

=5.75 g
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Answer 2

mole is the quantity in number having a mass equal to its atomic or molecular mass in grams

Magnesium Atomic no. 12

therefore, 1mol of MG=24g

now mol= given mass/molar mass

=6/24

=0.25 mol

now Sodium Atomic no. =11

therefore, 1mol of Na=23g

givemass= mol * molar mass

=o.25 * 23

=5.75