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phoric acid reacts with potassium hydroxide as indicated by the follewing reaction. If 1se. 0.200 M H,PO is mixed with 175 ml. of 0 300 M KOH 10 mol u po ol KOH mol H O Changs After Reaction What is the molarity of the reagent in excess? A. 0.161 M B. 0.0538 M C 0.200 MM D. 0.0385 M F 0.09 11. What is the molarity of a calcium hydroxide solution if 25.05 ml. CatOH) completely react 0.512 g of KHP (KHCMO4)? A. 0.0250 M B. 0.0500 M C. 0.0300 M D. 0.100 NM E.0.2 12. The boiling point of SiHs is much lower than that of HF. This is because A. of ion-dipole interactions in SiHa B. of hydrogen bonding in HF C. of dipole-dipole interactions in SiHa D. SiHs is polar E. All of These. 13. How many moles of oxygen react during the complete combustion of 14.4 g of CsH1a? Csk 1 12 + 8 O2 ? 5 CO2 + 6 H2O C, 2.40 mol ?, 0.600 mol B. 1.60 mol D. 1.00 mol 14. A chemist wants to make 500. mL of 0.0500 M HCI by diluting a 6.00 M HC1 solutio of that solution should be used? A. 1.12 mL B. 6.00 mL C. 2.09 mL D. 4.17 ml 15. How many grams of KMnO4 are in 250. mL of 0.125 M KMnO, solution? D. 79.0 g A. 28.3 g B. 0.198 g C. 4.93 g 16. Which of the following is a not strong acid? A. H2SO4 B. HCIO4 C. HBr D. HCI 17. Using the activity series, which ONE of the following reactions will not occur? A. 3 Pt(s) +2 Au+3(aq) 2 Au(s) +3 Pt+2(aq) B. Pb(s) + 2 HCl(aq) H2(g) +PbCl2(aq) C. Zn(s) + 2 HCI(aq) H2(g) + ZnCl2(aq) D. 3 Mg(s) +2 Al+3(aq) 2 Al(s) +3 Mg2+(aq) E. 2 Ag(s) + Cu+2(a)2 Ag+(aq) +Cu(s) 18. The oxidation number of the chlorine in KCIO3 is ?.+3 D. +5 A. +1 ?.-1

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