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Chemical… JEOPARDY! Chemical Jeopardy Atoms More Atoms Empirical Formulas Stoichiometry Limiting Reagents Potpourri 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500 Atoms 100 These particles are responsible for most of the mass of an atom. What are protons and neutrons? Chem is try Atoms 200 An atom of phosphorous (P) would have this charge if it gained three electrons. What is -3? Chem is try Atoms 400 An alpha particle is composed of two protons and two neutrons. If an atom of 224Ra emits two alpha particles, this atom will result. What is 216Po? Chem is try Atoms 300 56Fe2+ has this many protons, neutrons, and electrons What are 26, 30, and 24? Chem is try Molarity 500 Describe what is going on here: What is Rutherford’s Gold Foil Experiment? Chem is try More Atoms 100 This is the molar mass of the amino acid glycine, C2H6NO2 What is 76 g/mol? Chem is try More Atoms 200 This is the molar mass of Cu(NO3)2 What is 187.57 g/mol? Chem is try More Atoms 300 There are this many molecules of glucose (C6H12O6) in 1.50 g of the substance? What are 5.0 x 10^21 molecules? Chem is try More Atoms 400 There are this many atoms of hydrogen in 22.50 g of the gas. Remember, hydrogen is a diatomic molecule. What are ________ atoms H? Chem is try More Atoms 500 What is going on here, and why do we care about it when we turn on the TV? Next: Empirical Formulas 100 This is the percent of oxygen in KMnO4. What is 40.5%? Chem is try Empirical Formulas 200 Free hydrgoen gas can be obtained from ethyl alcohol (C2H5OH). This many grams can be obtained from 150.0g of the alcohol, What are 19.6 g? Chem is try Empirical Formulas 300 This is the empirical formula of Erythrose, C 4H 8O 4. What is CH2O? Chem is try Empirical Formulas 400 A sample of the mineral ore ilmenite contains 5.41 g iron, 4.64 g titanium, and 4.65 g oxygen. This is the empirical formula of the ore. What is FeTiO3? Chem is try Empirical Formulas 500 Analysis of 100g of Vitamin C (ascorbic acid) reveals that it has the following elemental composition: 40.92 g C, 4.58 g H, and 54.50 g O. What is the empirical formula for Vitamin C? What is C3H4O3? Chem is try Stoichiometry 100 This is the first step in any stoichiometry problem. What is balancing the equation? Chem is try Stoichiometry 200 This is the balanced form of the following equation: LiOH + CO2 Li2CO3 + H2O What is 2LiOH + CO2 Li2CO3 + H2O? Chem is try Stoichiometry 300 0.45 moles of nitrogen will react with this many moles of hydrogen in the following reaction, called the Haber Process: N2 + H2 NH3 What are 1.35 moles H2? Chem is try Stoichiometry 400 This many grams of carbon dioxide will form from the complete combustion of 25.0g butene, C4H10. What are _____ g? Chem is try Stoichiometry 500 2.2 x 10^9 kg of CO2 are produced annually. If you assume it all came from the combustion of gasoline (octane), this is how much octane combusted. What is a lot of octane? Chem is try Limiting Reagents 100 Upon completion of the reaction below, this amount of the limiting reagent, B, will be left remaining: A+BC+D What is none? Chem is try Limiting Reagents 200 True or False: the limiting reagent is always the reactant present in smaller amounts? What is false – you must consider stoichiometry as well? Chem is try Limiting Reagents 300 Magnesium and hydrochloric acid react as shown below. If you add a strip of Mg to a test tube of HCl and the metal completely disappears, this is the limiting reagent: Mg + HCl H2 + MgCl2 What is magnesium? Chem is try Limiting Reagents 400 This is the mass of nitrogen dioxide that could be produced from the reaction of 30.0g of NO and 30.0g of O2: NO + O2 NO2 What are ______g NO2? Chem is try Limiting Reagents 500 This is the mass of excess reagent left when 100.0g glucose, C6H12O6, reacts with 180.0 g O2. What are ______g glucose? Chem is try Potpourri 100 Grampa Simpson’s new hybrid car now gets 4.17 furlongs to the quart. This is the fuel efficiency of his car in kilometers per liter when 1 furlong = 7920 in, 1 in = 2.54 cm, 1 quart = 32 ounces, and 1 ounce = 29.57 mL What is 0.889 km/L Chem is try Potpourri 200 This element is formed when 235U gives off three alpha particles and later emits two beta particles (formed from the decomposition of a neutron into a proton and electron). What is 223Ra (radium)? Chem is try Potpourri 300 In terms of the Bonds, James Bonds between atoms, explain where the heat produced in an exothermic reaction comes from. Products have lower Ep than reactants. Change in Ep is released as heat. Chem is try Potpourri 400 Talk to me about GFP Green Fluorescent Protein. Research on it was awarded 2008 Nobel Prize. Useful for illuminating biological processes. Used as a protein tag. Chem is try Potpourri 500 “Thus conscience doth make _______ of us all.” What are cowards? Chem is try More Atoms 500(b) Why was JJ Thompson addicted to Laguna Beach? Chem is try