What is the mass in grams of 0.375 mol if the element potassium, k?

Answer: 14.625g

Explanation:

No of moles = mass given/molar mass

No of moles given = 0.375mol

Mass is the unknown (?)

Molar mass of K = 39

No of moles = mass given/molar mass

Substitute the values

0.375 = mass/39

Cross multiply

Mass = 39*0.375

Mass = 14.625g

The mass is 14.625g

14.625g

Explanation:

Mass of a substance = number of moles of the substance * molar mass of the substance

Substance of interest is potassium, K

Given, Number of moles of K = 0.375mol

Molar mass of K = 39g/mol

Therefore, mass of K = 0.375*39=14.625g