Empirical & Molecular Formula

Question 1

Define the empirical formula

Answer 1

The simplest whole number ratio of atoms of each element in a compound

Question 2

Define molecular formula

Answer 2

The actual number of atoms of each element in a compound

Question 3

Calculate the empirical formula of 10g of H and 80g of O

Answer 3

H2O

Question 4

85.7% of C, and H, calculate the empirical formula

Answer 4

CH2

Question 5

The empirical formula of X = C4H10S Mr of X = 180. Calculate the molecular formula.

Answer 5

C8H20S2