Solubility of sulfates Flashcards
1
Q
what is the least soluble
A
barium sulphate.
2
Q
give an example
but a full and ionic equation.
A
full: SrCl2 + Na2SO4 -> 2NaCl + SrSO4
ionic: Sr2+ + SO42- -> SrSO4
3
Q
what is barium sulphat used in.
why is it safe to use
A
in medicine
as a barium meal, given to patients who need xrays of their intestines. The barium absorbs the xrays and so the gut shows up upon the xray image .
its safe to use due low solubility eventhough its toxic.
4
Q
what happens as you go down the group to sulphates of group 2?
A
become less soluble
