Chemical calculations 0.0 / 5 ? ChemistryChemical calculationsGCSEAQA Created by: emewsCreated on: 11-11-17 09:33 What is the predicted yield in a chemical calculation? The mass. 1 of 7 What does a 100% yield mean? No product has been lost. 2 of 7 What does a 0% yield mean? No product has been made. 3 of 7 For a given mass of reactants it's possible to calculate what? The maximum mass that could be made of a certain product. 4 of 7 What is the actual yield? The actual yield is the mass of product made when the reaction is actually carried out. 5 of 7 Why might the percentage yield not be exactly 100% Loss when transferring liquids, loss when evaporating, loss when filtering. 6 of 7 What two things do you need to calculate the amount of a substance (in moles) in a solution? You need to know the reacting masses and product masses. 7 of 7
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