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Author Question: If 30 mL of 5.0 104M Ca(NO3)2 are added to 70 mL of 2.0 104M NaF, will a precipitate occur? (Ksp ... (Read 63 times)

ereecah

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on: Mar 21, 2021

Question 1

How many moles of Fe(OH)2 [Ksp = 1.8 × 10–15] will dissolve in 1.0 liter of water buffered at pH = 10.32?

◦ 4.1 × 10–8
◦ 2.1 × 10–4
◦ 4.4 × 10–8
◦ 2.4 × 107
◦ 8.6 × 10–12

Question 2

If 30 mL of 5.0 × 10–4M Ca(NO3)2 are added to 70 mL of 2.0 × 10–4M NaF, will a precipitate occur? (Ksp of CaF2 = 4.0 × 10–11)

◦ No, because the ion product is greater than Ksp.
◦ Yes, because the ion product is less than Ksp.
◦ No, because the ion product is less than Ksp.
◦ Not enough information is given.
◦ Yes, because the ion product is greater than Ksp.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by ereecah on Mar 21, 2021

katieost

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Reply #1 on: Mar 21, 2021
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ereecah

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Reply 2 on: Mar 21, 2021
Excellent

nguyenhoanhat

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Reply 3 on: Yesterday
Wow, this really help

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