Molar Mass of KH2PO4

How to work out the molar mass of KH2PO4

1. Count the atoms of each element in KH2PO4: 1 K, 2 H, 1 P and 4 O.
2. Multiply each count by the element's atomic weight: 1 × 39.098 = 39.098; 2 × 1.008 = 2.016; 1 × 30.974 = 30.974; 4 × 15.999 = 63.996.
3. Add the results: 39.098 + 2.016 + 30.974 + 63.996 = 136.084 g/mol.

Frequently asked questions

What is the molar mass of KH2PO4?

The molar mass of potassium dihydrogen phosphate (KH2PO4) is 136.084 g/mol, so one mole of it weighs 136.084 grams.

How many moles are in 100 grams of KH2PO4?

100 g ÷ 136.084 g/mol = 0.735 mol.

Which element makes up most of the mass of KH2PO4?

O, at 47.03% of the mass.