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this is a Ksp problem HELP!?

Mr. Ellis Hintz

Feb 20, 2025

this is a Ksp problem HELP!?

The solubility of silver chromate is 0.0287 g/1.0 L of solution. What is the Ksp for Ag2CrO4?Question 5 answersA. 2.6 × 10-12B. 9.5 × 10-5C. 6.5 × 10-13D. 2.4 × 10-5E. < 1.0 × 10-13

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2 Answers

Feb 20, 2025

moles of dissolved Ag2CrO4 = 0.0287 g/ 331.73 g/mol=8.65 x 10^-5[Ag+]= 2 x 8.65 x 10^-5 / 1.0 L=1.73 x 10^-4 M[CrO42-]= 8.65 x 10^-5 / 1.0 L = 8.65 x 10^-5 MKsp = [Ag+]^2 [CrO42-]= ( 1.73 x 10^-4)^2 x 8.65 x 10^-5 =2.6 x 10^-12... Show More

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Feb 20, 2025

Convert the molar solubility of silver chromate from g/L to mol/L.= 0.0287 g/L * (1 mol / 331.73 g)= 8.65 x 10^-5 mol/LAg2CrO4 ⇋ 2Ag+1 + CrO4-2Using the equation above, we can express Ksp as:Ksp = [Ag+1]^2 [CrO4-2] Since there's a 2:1 ratio between Ag and CrO4, if the concentration of CrO4 ions is x, then the concentration of Ag ions is 2x.Ksp = (2x)^2 * xKsp = 4x^3Substitute the molar solubility in place of x to find the solubility-product constant.Ksp = 4(8.65 x 10^-5)^3Ksp = 2.6 x 10^-12 (Answer)Pick A. Hope this helps!... Show More

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