Homework Answers
E. NH4NO3
Reason: chlorophenol red changes color from yellow to violet in the range 4.8 - 6.7, SInce the solution remains yellow, the pH of the solution is below 4.8 meaning that we are looking at an acidic solution. All the others are bneutral with pH close to 7. NH4NO3 is the only acidic salt as it is the product of weak base NH4OH and strong acid HNO3
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