Jia's answer to Jessica's Secondary 4 E Maths Singapore question.
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NH3 (aq) is alkaline so it will turn red litmus paper blue.
H2SO4 is acidic so it will turn blue litmus paper red.
When (NH4)2SO4 reacts with WARM NaOH, NH3 (g) is formed.
The most common white ppt with a sulfate is BaSO4 so you should consider this ppt first before working back to figure out the other compounds.
H2SO4 is acidic so it will turn blue litmus paper red.
When (NH4)2SO4 reacts with WARM NaOH, NH3 (g) is formed.
The most common white ppt with a sulfate is BaSO4 so you should consider this ppt first before working back to figure out the other compounds.
Date Posted:
1 year ago
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