Question

What is the empirical formula of 4.0 g Ca and 16.0 g Br.

Answer 1

Empirical Formula

• By making use of the molar mass from the periodic table, change the mass of every element to moles.
• Divide every mole value by the lowest number of moles computed.
• Round up to the closest whole number. This is denoted by subscripts in the empirical formula and is the mole ratio of the elements.