Answer to Question #75018 in General Chemistry for Lilit

Question

What is the formula mass for potassium nitrate?

Answer 1

Solution
The formula of potassium nitrate is KNO3.
The atomic mass of potassium is 39.098 g/mol, the atomic mass of nitrogen is 14.007
g/mol, and the atomic mass of oxygen is 15.999 g/mol
Thus, the formula mass of potassium nitrate is 39.098+14.007+15.999·3=101.102 g/mol.
Answer
101.102 g/mol