How many grams of neon will have the same number of atoms as 4gram of

1.	How many grams of neon will have the same number of atoms as 4gram of calcium
Answer» MOLAR MASS of Ne = 20g Mass of 1 ATOM of Ne = Molar mass/Avagadro No = 20 / 6.02210²³ g Molar mass of Ca = 40 g Number of particles in 4 g of Ca = 4/406.02210²³ = 6.02210²² atoms Therefore, number of atoms of Ne same as 4 g of Ca = 206.02210²²/6.022*10²³ =20/10 =2 g Ans: 2g of Ne has the same no of atoms as 4g of Ca. Hope you UNDERSTOOD it now!

How many grams of neon will have the same number of atoms as 4gram of calcium

Answer»

MOLAR MASS of Ne = 20g

Mass of 1 ATOM of Ne = Molar mass/Avagadro No = 20 / 6.022*10²³ g

Molar mass of Ca = 40 g

Number of particles in 4 g of Ca = 4/40*6.022*10²³ = 6.022*10²² atoms

Therefore, number of atoms of Ne same as 4 g of Ca = 20*6.022*10²²/6.022*10²³

=20/10

=2 g

Ans: 2g of Ne has the same no of atoms as 4g of Ca.

Hope you UNDERSTOOD it now!