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Jeopardy Game. Anees Hakim Chris Hernandez. 12.1. How are mole ratios used in chemical calculations?. 12.1a. In chemical calculations, mole ratios are used to convert between moles of reactant and moles of product, between moles of reactants, or between moles of products. 12. 2. - PowerPoint PPT Presentation
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Chapter 12 Chapter 13 Chapter 14 Chapter 17 Chapter 25
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12.1a
• In chemical calculations, mole ratios are used to convert between moles of reactant and moles of product, between moles of reactants, or between moles of products.
12.3
• How many moles of chlorine gas will be required to react with sufficient iron to produce 14 moles of iron(III) chloride?
• 2Fe(s) +3Cl2(g) 2FeCl3(g)
12.4
• What is the percent yield if 4.65 g of copper is produced when 1.87 g of aluminum reacts with an excess of copper(II) sulfate
• 2Al(s) + 3CuSO4 (aq) → Al2 (SO4) 3 (aq) + 3Cu(s)
12.5
• The combustion of acetylene gas is represented by this equation:
• 2C2H2 (g) + 5O2 (g) → 4CO2 (g) + 2H2O(g)
• How many grams of H2O are produced when 52.0 g C2H2 burns in oxygen?
14.4
• A given mass of air has a volume of 6.00 L at 101 kPa. What volume will it occupy at 25.0 kPa if the temperature does not change?
14.5
• If a balloon holds 2 liters of a gas and is placed in a freezer and the temperature decreases from 298 to 257 Kelvin what is the final volume of the balloon?
17.5
• Using calories, calculate how much heat 32.0 g of water absorbs when it is heated from 25.0°C to 80.0°C, how many kilojoules does this make?
25.1a
• The amount of time it takes for a material to decay until the point where only one half of the original amount is remaining
25.2a
• combining nuclei to producing a single nucleus that has a greater mass than either of the original nuclei
25.3a
• Splitting a nucleus into smaller parts, this is followed by a large amount of energy being released.
25.4
• Match the decay with the material it cannot
pass through.
• Alpha radiation• Beta radiation• Gamma radiation
• Paper• Wood • Lead
25.5
• . A sample of thorium-234 has a half-life of 24.1 days. How many half-lives have passed after 50 days. What fraction of the thorium will remain after 50 days.