How many moles are equal to 47.2 g of K2O

Answer: 0.50 mole K2O

Explanation: To convert the mass of K2O to moles we will need to find the molar mass of K2O.

47.2 g K2O x 1 mole K2O / 94 g K2O

= 0.50 mole K2O

0.5mole

Explanation:

First, we need to calculate the molar mass of K2O. This is illustrated below:

Molar Mass of K2O = (39x2) + 16 = 78 + 16 = 94g/mol

Mass of the K2O from the question = 47.2g

Number of mole of K2O = ?

Number of mole = Mass / Molar Mass

Number of mole of K2O = 47.2/94 = 0.5mole

Therefore, 0.5mole is equal to 47.2g of K2O.