BRAINCAKE

Example Calculation - 1

Edexcel AS-level ChemistryErrors and UncertaintiesLesson 11 of 14

This worked example brings together a mole calculation and a percentage yield.

Question: 3.00 g of magnesium ribbon is heated in a crucible in excess oxygen. The mass of magnesium oxide collected is 4.50 g. Calculate the percentage yield. (Ar: Mg = 24.3, O = 16.0)

2Mg(s) + O2(g) → 2MgO(s)

Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz

BrainCake is free. Make an account in seconds and pick up where this page stops.

More in Errors and Uncertainties

All 14 lessons in Errors and Uncertainties · All Edexcel AS-level Chemistry topics