Percent Composition

Key Stage 4 Science / Chemistry

Sample Question

What is the
percentage composition by mass of potassium bromide, KBr, to the nearest decimal
point?

  • K = 32.9% and Br = 67.1%
  • K = 67.1% and Br = 32.9%
  • K = 50.0% and Br = 50.0%
  • K = 30% and Br = 70%
  • K = 39.1% and Br = 79.9%

This is just one of our 151,668 study questions in Quipper School.

Quipper School UK Curriculum

Key Stage 4 Science

Topics