Question

Calculate the simplest or empirical formula of a substance with

0.5540 grams of potassium (K) and 0.1701 grams of oxygen (O).

Answer 1

Step-by-step explanation:

mass of potassium: 0.5540g

mass of oxygen: 0.1701g

molecular mass of potassium: 39.10g/mol

molecular mass of oxygen: 16.00g/mol

• First divide mass of potassium and oxygen by their respective molecular masses.
• Divide answer by least value obtained from first step

k o

`(0.5540)/(39.10)`
`(0.1701)/(16.00)`

0.0142 0.0106

`(0.0142)/(0.0106)`
`(0.0106)/(0.0106)`

1.34=1.00 1

Empirical formula, EF = KO