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The pKa of ammonium nitrate (NH4NO3) is approximately 4.1.

This is a weak acid. Split it apart into NH4 and NO3. Add OH to NH4 and H+ to N03. NH40H is a weak base, while HNO3 is a strong acid. Strong acid + weak base =H= weak acid.

You could also just look at the pKa value, convert it into Ka, and see that it is more acidic. To convert, do 10^-pKa. You should get 7.9 x 10^-5. This value shows it is acidic.

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12y ago

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