(5 pts) If calcium cations and phosphate anions are each present at 0.20 mg/L in an...
(5 pts) If calcium cations and phosphate anions are each present at 0.20 mg/L in an aqueous solution, is the solid calcium phosphate expected to precipitate?
See Table 2.3, p.62: Ca3(PO4)2(s) 3Ca+2(aq) + 2PO4-3(aq); Ksp=1.0x10-27.
Molar masses: Ca3(PO4)2, 310.2; Ca+2, 40.1; PO4-3, 95.0.
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(5 pts) If calcium cations and phosphate anions
are each present at 0.20 mg/L in an...
A chemist fills a reaction vessel with 0.980 g calcium phosphate (Ca3(PO4)2) solid, 0.212 M calcium...
A chemist fills a reaction vessel with 0.980 g calcium phosphate (Ca3(PO4)2) solid, 0.212 M calcium (Ca+2) aqueous solution and 0.119 M phosphate (PO4−3) aqueous solution at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy ΔG for the following chemical reaction: Ca3(PO4)2(s) 3Ca+2(aq)+2PO4−3(aq) Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule.
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Question 4: Given the Ksp = 2.0 x 10-29 for the sparingly soluble salt, calcium phosphate (Ca3(PO4)2), determine the molar solubility of the salt in a solution that is 0.20 Min calcium perchlorate, Ca(CIO4)2.
Select the correct solubility equilibrium for the slightly soluble salt, calcium phosphate. O CaPO4(s) -- Ca2+(aq)...
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When you write the answers, please write the page number for which the question is located....
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
Question 4: Given the Ksp = 2.0 x 10-29 for the sparingly soluble salt, calcium phosphate (Ca3(PO4)2), determine the molar solubility of the salt in a solution that is 0.20 Min calcium perchlorate, Ca(CIO4)2.
Select the correct solubility equilibrium for the slightly soluble salt, calcium phosphate. O CaPO4(s) -- Ca2+(aq) + PO42-(aq) O Ca3(PO4)2(s) — 3Ca2+(aq) + 2P043-(aq) O Ca3PO4(s) — 3Ca+(aq) + PO43-(aq) CaPO4(s) - Ca(aq) + PO4(aq)
41 A solution is made 0.10 molar in Mo2+, 0.10 molar in NH3, and 1.0 molar in NH,CI. ill Mg(OH)2 precipitate? 42 How many grams of ammonium chloride must be added to 100 ml of 0.050-molar ammonium hydroxide to revent the precipitation of ferrous hydroxide, Fe(OH)2, when the NH4CI- NH4OH mixture is added to 100 ml of 0.020-molar FeCl2? Assume that the addition of solid NH4Cl produces no volume change 43 The Ksp of calcium phosphate, Ca3(PO4)2, is 1.3 X...
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When you write the answers, please write the page number for
which the question is located. Thank you!
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