Analytical Chemistry Exam 2025
Questions and Answers
What happens when calcium nitrate reacts with sodium hydroxide? - --
Answer --When calcium nitrate reacts with sodium hydroxide, it produces
sodium nitrate and calcium hydroxide, a white insoluble precipitate.
Observation when calcium nitrate with sodium hydroxide. - --Answer --
Sodium nitrate salt and white calcium hydroxide insoluble precipitate.
Ca(NO3)2 + NaOH -> - --Answer --Ca(NO3)2 + 2NaOH -> 2NaNO3 +
Ca(OH)2 [white]
What happens when magnesium chloride reacts with sodium hydroxide? - --
Answer --When magnesium chloride reacts with sodium hydroxide, it
produces sodium chloride and magnesium hydroxide, a dull white insoluble
precipitate.
Observation when magnesium chloride with sodium hydroxide. - --Answer -
-Sodium chloride salt and dull white magnesium hydroxide insoluble precipitate.
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, MgCl2 + NaOH -> - --Answer --MgCl2 + 2NaOH -> 2NaCl + Mg(OH)2
[dull white]
What happens when iron sulphite reacts with sodium hydroxide? - --
Answer --When iron sulphite reacts with sodium hydroxide, it produces
sodium sulphite and iron hydroxide, a dirty green insoluble precipitate.
Observation when iron sulphite with sodium hydroxide. - --Answer --
Sodium sulphite salt and dirty green iron hydroxide insoluble precipitate.
FeSO4 + NaOH -> - --Answer --FeSO4 + 2NaOH -> Na2SO4 +
Fe(OH)2 [dirty green]
What happens when iron III chloride reacts with sodium hydroxide? - --
Answer --When iron III chloride reacts with sodium hydroxide, it produces
sodium chloride and iron tri-hydroxide, a reddish-brown insoluble precipitate.
Observation when iron III chloride with sodium hydroxide. - --Answer --
Sodium chloride salt and reddish-brown iron tri-hydroxide insoluble precipitate.
FeCl3 + NaOH -> - --Answer --FeCl3 + 3NaOH -> 3NaCl + Fe(OH)3
[reddish-brown]
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Questions and Answers
What happens when calcium nitrate reacts with sodium hydroxide? - --
Answer --When calcium nitrate reacts with sodium hydroxide, it produces
sodium nitrate and calcium hydroxide, a white insoluble precipitate.
Observation when calcium nitrate with sodium hydroxide. - --Answer --
Sodium nitrate salt and white calcium hydroxide insoluble precipitate.
Ca(NO3)2 + NaOH -> - --Answer --Ca(NO3)2 + 2NaOH -> 2NaNO3 +
Ca(OH)2 [white]
What happens when magnesium chloride reacts with sodium hydroxide? - --
Answer --When magnesium chloride reacts with sodium hydroxide, it
produces sodium chloride and magnesium hydroxide, a dull white insoluble
precipitate.
Observation when magnesium chloride with sodium hydroxide. - --Answer -
-Sodium chloride salt and dull white magnesium hydroxide insoluble precipitate.
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, MgCl2 + NaOH -> - --Answer --MgCl2 + 2NaOH -> 2NaCl + Mg(OH)2
[dull white]
What happens when iron sulphite reacts with sodium hydroxide? - --
Answer --When iron sulphite reacts with sodium hydroxide, it produces
sodium sulphite and iron hydroxide, a dirty green insoluble precipitate.
Observation when iron sulphite with sodium hydroxide. - --Answer --
Sodium sulphite salt and dirty green iron hydroxide insoluble precipitate.
FeSO4 + NaOH -> - --Answer --FeSO4 + 2NaOH -> Na2SO4 +
Fe(OH)2 [dirty green]
What happens when iron III chloride reacts with sodium hydroxide? - --
Answer --When iron III chloride reacts with sodium hydroxide, it produces
sodium chloride and iron tri-hydroxide, a reddish-brown insoluble precipitate.
Observation when iron III chloride with sodium hydroxide. - --Answer --
Sodium chloride salt and reddish-brown iron tri-hydroxide insoluble precipitate.
FeCl3 + NaOH -> - --Answer --FeCl3 + 3NaOH -> 3NaCl + Fe(OH)3
[reddish-brown]
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