The answers are:
a. NO3-
b. CO3 2-
c. Na+
d. NH4+
The book lists CO3 2- as the answer. Can someone tell me why salt is not soluble with this ion?
2007-04-28 02:18:02 · 3 answers · asked by Toothie 2 in Science & Mathematics ➔ Chemistry
The answer is based on a few rules:
1. All nitrates are soluble in water (that rules out the answer a)
2. All sodium, ammonium and potassium salts are soluble in water (that rules out answers c and d)
3. All carbonates are insoluble in water except sodium, ammonium and potassium (therefore the answer is b)
4. Lead, silver and mercury chloride are insoluble in water
5. Lead, barium, calcium sulphate are insoluble in water
2007-04-28 02:36:15 · answer #1 · answered by JustMe 2 · 0⤊ 0⤋
I believe it is because there it takes more energy of to separate higher charged ions. Phophate -3 carbonate -2, sulfate -2 tend to be less soluble than
chloride -1
The same with positive ions sodium, potassium +1
are more soluble than calcium +2 and aluminum +3
2007-04-28 10:40:21 · answer #2 · answered by michael971 7 · 0⤊ 0⤋
impossible to answer when you do nt know the cation
example the salt Na2(Co3) is soluble in water
In some case CO3-- can give rise to CO2 which i s agas but it is only an indication
2007-04-28 09:37:03 · answer #3 · answered by maussy 7 · 0⤊ 0⤋