Exam 2 Fall 2010

184 m nano3 solution contains 0113 moles of nano3 a b

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Unformatted text preview: solution contains 0.113 moles of NaNO3? A. B. 543 mL 163 mL C. D. 614 mL 885 mL 9. What volume of 0.750 M FeCl2 is needed to completely react with 1.00 102 mL of 0.250 M KMnO4 in the reaction below? 5FeCl2(aq) + KMnO4(aq) + 8HCl(aq) 5FeCl3(aq) + MnCl2(aq) + KCl(aq) + 4H2O(l) A. B. 10. 167 mL 66.7 mL C. D. 33.3 mL 60.0 mL 42.3 mL of a 0.266 M LiNO3 solution is diluted to a final concentration of 0.0750 M. What approximate volume of water was added to reach the final concentration? A. B. 11. 108 mL 150. mL C. D. 11.9 mL 30.4 mL Which of the following is insoluble in water? A. B. 12. LiOH Na2SO4 C. D. HNO3 Mg(OH)2 Write the molecular equation for the precipitation reaction that occurs (if any) when solutions of lead(II) nitrate and ammonium sulfate are mixed. A. B. C. D. Pb(NO3)2(aq) + (NH4)2SO4(aq) Pb(NO3)2(aq) + (NH4)2SO4(aq) No reaction occurs. 2 NH4NO3(s) + PbSO4(aq) 4 NH4NO3(aq) + PbSO4(s) 2 NH4NO3(aq) + PbSO4(s) 2 Pb(NO3)2(aq) + 2 (NH4)2SO4(aq) 13. Complete and balance the following reaction. Determine the formula for the missing product and the coefficient of water when balanced. H2SO4(aq) + KOH(aq) _________ + __ H2O(l) A. B. 14. K2SO4(aq); 2 KSO4(aq); 2 C. D. K2SO4(aq); 1 KSO4(aq); 1 The titration of 25.0 mL of an unknown concentration of H2SO4 solution requires 83.6 mL of 0.12 M LiOH solution. What is the concentration of the H2SO4 solution? It might be helpful to write and balance the chemical equation. A. B. 15. 0.20 M 0.10 M C. D. 0.40 M 0.36 M Which species acts as the reducing agent in the reaction below? 2ReCl5 + SbCl3 2ReCl4 + SbCl5 A. B. 16. ReCl5 SbCl3 C. D. ReCl4 SbCl5 What is the oxidation number of the chromium atom in K2CrO4? A. B. +6 +2 C. D. +3 +7 17. Convert 1.26 atm to mmHg. A. B. 1.66 10 3 mmHg 3.30 10 3 mmHg C. D. 958 mmHg 604 mmHg 18. According to Charles's law, what will happen to the volume of a gas if the temperature in Kelvin is increases by a factor of 2 when the number of moles and pressure of the gas remain constant? A. B. The volume will be halved The volume will double C. D. Th...
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This document was uploaded on 03/13/2014 for the course CHE 105 at Kentucky.

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