Calculate the number of moles in 52 g of He. [Atomic mass of He = 4 u

1.	Calculate the number of moles in 52 g of He. [Atomic mass of He = 4 u]
Answer» Given: Mass of He (m) = 52g Atomic mass of He = 4u Molar mass of He (M) = 4g/mol To calculate the number of moles, we will apply the formula given below: Number of moles = \(\frac{Given\,mass\,(m)}{Molar\,mass\,(M)}\) Number of moles = \(\frac{52g}{4g/mol}\) Number of moles = 13 Thus, the number of moles in 52 g of He is 13.

Calculate the number of moles in 52 g of He. [Atomic mass of He = 4 u]

Answer»

Given:

Mass of He (m) = 52g

Atomic mass of He = 4u

Molar mass of He (M) = 4g/mol

To calculate the number of moles, we will apply the formula given below:

Number of moles = \(\frac{Given\,mass\,(m)}{Molar\,mass\,(M)}\)

Number of moles = \(\frac{52g}{4g/mol}\)

Number of moles = 13

Thus, the number of moles in 52 g of He is 13.