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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 26 times)

ereecah

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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.


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Marked as best answer by ereecah on Mar 21, 2021

katieost

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ereecah

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Reply 2 on: Mar 21, 2021
Thanks for the timely response, appreciate it


vickybb89

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Reply 3 on: Yesterday
Excellent

 

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