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Chemistry > Anions Tests > Flashcards

Anions Tests Flashcards

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1
Q

How do you test for carbonate and hydrogen carbonate?

A

Add dilute HCL to carbonate/hydrogencarbonate soln. Gas produced turns limewater milky

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2
Q

How to distinguish between carbonate and hydrogen carbonate?

A

Add MgSO4 to both.
Carbonate-white ppt
Hydrogencarbonate- white ppt on heating

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3
Q

How to test for sulfate?

A

Add BaCl2 to sulfate soln. Get white ppt that is insoluble in dilute HCL soln

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4
Q

How to test for sulfite?

A

Add BaCl2 to sulfite soln. Get white ppt that is soluble in dilute HCl soln.

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5
Q

How to test for chloride?

A

Add AgNO3 to chloride soln. Get white ppt soluble in dilute NH3 soln

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6
Q

How to test for nitrate?

A

Mix nitrate soln with cold FeSO4. Pour conc. H2SO4 down inside of test tube. Brown ring forms.

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7
Q

How to test for phosphate?

A

Add ammonium molybdate reagent and conc. Nitric acid. Heat gently. Get yellow ppt soluble in ammonia soln.

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Chemistry (14 decks)

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