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- 12.17 Which of the following is more likely to precipitate sulfate ions? PbSO4(s) Pb*+(aq) + SO42’(aq) K = 1.8 X IO"8 CaSO4(s) i=i Ca2+(aq) + SO42'(aq) K = 9.1 X 10-6Which of the following is more likely to precipitate the hydroxide ion? Cu(OH)2(s) *=» Ctr+(aq) + 2 OH’(aq) K = 1.6 X IO-19 Ca(OH)2(s) *=» Ca2+(aq) + 2 OH’(aq) K = 7.9 X 10"6Complete the following neutralization reaction. (Predict the products and balance the reaction.) Ca(OH)2 + HClO4 --> ? Group of answer choices Ca(OH)2 + HClO4 --> 2 H2O + CaClO4 Ca(OH)2 + HClO4 --> H2O2 + CaClO4 Ca(OH)2 + HClO4 --> H2O + Ca(ClO4)2 Ca(OH)2 + 2 HClO4 --> 2 H2O + Ca(ClO4)2
- It is desired to prepare 500 mL of 0.325 normal KOH for use in the reaction: HCI + KOH → KCI + H₂O How many grams of KOH are needed? gQ7. Karl Fisher titration is used to determine moisture content of food products according to the chemical reaction below: 2H₂O + SO₂ + 12 → H₂SO4 + 2HI (i) Name the reaction that involved. (ii) Identify the FOUR major chemical components needed in the Karl Fisher reagents. (iii) Rewrite the actual chemical reaction(s) that involved during Karl Fisher titration. (iv) Outline the function of each major chemicals in the reaction stated in answer (iii).4- Prepare 0.1 M of HCI in 100ml of distilled water from 6N of HCI?
- The scientist starts with four solutions made of water-soluble salts. Solution A contains sodium arsenate. Solution B contains ammonium oxalate. Soution C contains silver chlorate. Solution D contains aluminum bromide. Solution Solute Color of Solution A Na3AsO4Na3AsO4 colorless B (NH4)2C2O4(NH4)2C2O4 colorless C AgClO3AgClO3 colorless D AlBr3AlBr3 yellow The results of mixing each solution in pairs are shown in the table. Experiment Solutions Mixed Result 1 A + B no precipitate, colorless solution 2 A + C brown precipitate 3 A + D white precipitate 4 B + C white precipitate 5 B + D white precipitate 6 C + D yellow precipitate Identify the formula for each precipitate that forms. precipitate from A+C: precipitate from A+D: precipitate from B+C: precipitate from B+D: precipitate from C+D:What are the steps to yield Only typed solution4. If some of the calcium metal remains unreacted when you start the titration, the calcium will react with hydrochloric acid to produce hydrogen gas. Ca (s) + 2 HCl (aq) - CaCl2 (aq) + H2(g) Would this cause error in the titration? If so, would more or less HCl be required? How would this affect the molecular formula for calcium hydroxide?
- Mg(OH)2 + Na2SO4 --> NaOH + MgSO4 Balance the equation. How many moles of NaOH is produced if 150mL of 1.5M Na2SO4 solution is used?ml?ClassID=1471954077 44.00 mL of 0.50 M H2SO4 reacts with 0.35 M LIOH and reaches the endpoint using bromthymol blue as an indicator. What volume of LIOH is required for this reaction? 2LIOH + H2SO4 → LI¿SO4 + 2H2O [?] mL LIOH mL LIOH EnterWhen AgNO3 dissolves in water, what ions does it break apart to form in the resulting solution?