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Author Question: Which metal sulfides can be precipitated from a solution that is 0.01 M in Mn2+, Zn2+, Pb2+ and Cu2+ ... (Read 83 times)

SGallaher96

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on: Feb 15, 2020

Question 1

0.10 M potassium chromate is slowly added to a solution containing 0.20 M AgNO3 and 0.20 M Ba(NO3)2. What is the Ag+ concentration when BaCrO4 just starts to precipitate? Ksp for Ag2CrO4 and BaCrO4 are 1.1 × 10-12 and 1.2 × 10-10, respectively.
◦ 4.3 × 10-2 M
◦ 6.5 × 10-5 M
◦ 1.3 × 10-4 M
◦ 3.2 × 10-4 M

Question 2

Which metal sulfides can be precipitated from a solution that is 0.01 M in Mn2+, Zn2+, Pb2+ and Cu2+ and 0.10 M in H2S at a pH of 1.0?



◦ CuS
◦ MnS
◦ PbS, CuS
◦ ZnS, PbS, CuS
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by SGallaher96 on Feb 15, 2020

meltdown117

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Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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SGallaher96

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Reply 2 on: Feb 15, 2020
Gracias!

sailorcrescent

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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