How to use MgSO4,Na2CO3,HCL to prepare magnesium chloride salt ?

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Outline how you can prepare magnesium chloride salt from the chemicals

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Answer 1 · 2018-03-24T19:59:22

Well, magnesium carbonate is pretty insoluble stuff....

And so....

#MgSO_4(aq) + Na_2CO_3(aq) rarr MgCO_3(s)darr + Na_2SO_4(aq)#

Magnesium sulfate is relatively soluble....

And so the solid is separated from solution as #MgCO_3(s)#...

And this is then treated with #HCl(aq)# to give the chloride....

#MgCO_3(s) + 2HCl(aq) rarr MgCl_2(aq) + CO_2(g) uarr + H_2O(l)#

And of course to get reasonably dry #MgCl_2# be prepared for a bit of work....