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Author Question: What is the concentration of free Zn2+(aq) if 0.020 M Zn2+ solution is mixed with an equal volume of ... (Read 46 times)

WWatsford

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Question 1

What is the concentration of Ca2+ in ppm (mg/L) in cave water saturated with calcite (calcium carbonate, Ksp = 4.7 × 10-9)?
◦ 7.5 ppm
◦ 6.9 ppm
◦ 5.0 ppm
◦ 3.8 ppm
◦ 2.7 ppm

Question 2

What is the concentration of free Zn2+(aq) if 0.020 M Zn2+ solution is mixed with an equal volume of 2.0 M NH3(aq)? Kf for [Zn(NH3)4]2+ is 4.1 × 108.
◦ 2.5 × 10-11 M
◦ 2.9 × 10-11 M
◦ 1.7 × 10-10 M
◦ 9.6 × 10-11 M
◦ 2.4 × 10-9 M


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Marked as best answer by WWatsford on Jul 8, 2021

matt95

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WWatsford

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Reply 2 on: Jul 8, 2021
Excellent


Kedrick2014

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Reply 3 on: Yesterday
Wow, this really help

 

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