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Stoichiometry

Stoichiometry. 9.1. Stoichiometry. Composition stoichiometry – deals with the ______ relationships in _______________. Reaction stoichiometry – involves the mass _____________ between _________ and _________ in a _________ reaction. Types already covered – Don’t Copy.

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Stoichiometry

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  1. Stoichiometry 9.1

  2. Stoichiometry • Composition stoichiometry – deals with the ______ relationships in _______________. • Reaction stoichiometry – involves the mass _____________ between _________ and _________ in a _________ reaction.

  3. Types already covered – Don’t Copy • Mass – Moles and vice versa • Mole – digits and vice versa • Still need to be covered/pertaining to reactions • Mole – mole and vice versa • Mass – mole and vice versa • Mass – mass and vice versa • Mass – digits and vice versa • Mass – volume and vice versa

  4. Previous types of problems • How many atoms are present in 2.5 mol of zinc? • Determine the mass in grams of 3.50 mol of copper. • How many atoms are present in 100 grams of silver?

  5. A Problem • If you have 2.4 moles of NH3, how many moles of oxygen are needed to consume all NH3? • Need a balanced reaction • You must use units

  6. Mass-Mass Stoichiometry • If you have 450g of isoamyl alcohol (C5H11OH), how many grams of C2H3O2C5H11 do you have? • grams of A  moles of A  moles of B  grams of B

  7. Mass-Mass • If you solve in a stepwise manner, don’t round until the end. • How much (g) water needs to be added to react with 8.1 g of Mg? • What mass of tin(II) fluoride can be made from 55.0 g of HF if there is enough tin present?

  8. Mole-Mass • How much (grams) glucose is used with 1.03 x 10-2 mol oxygen? • What is the mass of CO2 produced from the above problem? • Mass of H2O?

  9. Density and Stoichiometry • What volume of water is produced from 20.0 mol of CO2 if an excess of LiOH is present? (Density of water is 1.00 g/mL) • D = mass/volume • What is the mass of LiOH used to obtain 1.5 L of water?

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