Answer:
If I remember correctly it should be B because it went from Cu^2 to Cu^0
Explanation:
Answer: 0.050 M NaCl
Explanation:
So the original solution is diluted from a total volume of 10.0 mL to 100.0 mL.
The M represents molarity which is moles of NaCl divided by the total solution volume in liters.
So if our original volume were to be increased by a factor of 10 then the denominator would be changed.
Here is a mathematical illustration:
5/10 = .5
5/100 = .05
Ammonia is a base, and sulfuric acid is well, an acid. When an acid and base react, they form a salt. In the case of ammonia and sulfuric acid, they will react to form ammonium sulphate.
It is a solid and will dissolve in water. One would then need to separate it from the sulfuric acid that remains and then treat it with sodium hydroxide to get ammonia again.But you will likely use aqueous sodium hydroxide, which means that you have to find a way to dry the product as a result. Back to square one.
Hope this helps
