Into three of the wells of your well-plate, add a small amount of NaF and 5 drop

Question

Into three of the wells of your well-plate, add a small amount of NaF and 5 drops of deionized water. To the first well, add 5 drops of 2 M Ca(NO)2 and observe any changes. To the second well, add 5 drops of 0.1 M AgNO3 and observe any changes; after about 1 minute add 5 drops of 3 M NH40H and observe any changes. To the third well, add 1 drop of 6 M HNOs followed by 5 drops of 0.1 M Fe(N0 and observe any changes. may take some time to see so be patient when conducting this part of the experiment Repeat this experiment three more times using NacL KBr,and Klinstead of NaE,

Explanation / Answer

First reaction

Balanced equation:
Ca(NO3)2 + 2 NaF ====> CaF2 + 2 NaNO3
Reaction type: double replacement

CaF2 will precipitate out of solution since calcium salts of halogens are usually insoluble

Second reaction

Balanced equation:
AgNO3 + NaF ====> AgF + NaNO3
Reaction type: double replacement

NaF reacting with AgNO3 to give AgF and NaNO3 salt

Third reaction

Balanced equation:
NaF + NH4OH ====> NH4F + NaOH
Reaction type: double replacement
NaF reactinf with NH4OH to give NH4F and NaOH

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