Review Homework REQUIRED (NOT Pie Progress) Question 16 of 46 (2 points) | Question Attempt: 1 of Unlimited ✓ 14 15 16 17 18 19 20 21 ✓ 22 ✓ 23 Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will form, enter its empirical formula in the last column. solution A solution B Does a precipitate form when A and B are mixed? empirical formula of precipitate Do ammonium sulfide copper(II) nitrate Oyes no ☐ silver nitrate sodium carbonate O yes no potassium chloride barium nitrate O yes no ☐

1. Molarity of the NaOH solution 0.238 mol/L Trial 1 Trial 2 Trial 2. Volume of H;PO4 added to flask 22.0 mL 22.0 mL 22.0 mL 3. Initial NaOH volume _0.25_ mL _0.75_ mL 0.55 mL 4. Final NaOH volume 17.60_ mL 18.20_ mL _17.90_ mL 5. NAOH volume used for titration to reach green end point mL mL mL 6. NaOH volume used for titration 7. Moles of NaOH used for titration mol mel mel 8. Moles of H;PO4 that reacted mol mel mol 9. Volume of H;PO4 added to flask L 10. Molarity of H3PO4 mol/L mol/L mol/L

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2- What is the concentration of Cro, required (molarity) in a solution that is 0.002 M in Ba2* in order to cause a precipitate to begin to form? The Ksp for BaCrO4 is 8.16x10-". Report your answer to the tenths place and enter your answer using scientific notation.

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Does the number of ions in solution increase, decrease, or remain constant?

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B. Molar Solubility of Calcium Hydroxide in the Presence of a Common Ion Trial 1 Trial 2 Trial 3 OM 1. Volume of saturated Ca(OH), with added CaCl, solution (mL) 25.0 25.0 25.0 0.05956 16.80 32.9 2. Concentration of standardized HCI solution (moVL) 3. Buret reading, initial (mL) O.00 33.5 4. Buret reading, final (mL) 10.80 48 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH¯ in saturated solution (mol) 8. (OH), equilibrium (moVL) 9. Molar solubility of Ca(OH), with added CaCl, (mo/L) 10. Average molar solubility of Ca(OH), with added CaCl, (mo/L) Account for the different molar solubilities in Part A.11 and Part B.10 (Report Sheet).

plz do correctly & show all work thnx!!! Solid lead(II) nitrate is slowly added to 150 mL of a 0.106 M potassium carbonate solution until the concentration of lead ion is 0.0358 M. The percent of carbonate ion remaining in solution is [ Submit Answer Retry Entire Group 6 more group attempts remaining Solid copper(II) nitrate is slowly added to 125 mL of a ammonium sulfide solution until the concentration of copper(II) ion is 0.0548 M. The maximum amount of sulfide remaining in solution is M. When 12.0 mL of a 6.35×104 M ammonium sulfide solution is combined with 25.0 mL of a 5.64×104M cobalt(II) nitrate solution does a precipitate form? (yes or no) For these conditions the Reaction Quotient, Q, is equal to[ When 15.0 mL of a 6.32x104 M nickel(II) iodide solution is combined with 25.0 mL of a 2.32×104M sodium hydroxide solution does a precipitate form? (yes or no) For these conditions the Reaction Quotient, Q, is equal to