are given two salt solutions. Record the identity of the salt solutions Add one

Question

are given two salt solutions. Record the identity of the salt solutions Add one or two drops of universal indicator to 10 drops of each solution in a test tube. Estimate the pH of each solution by comparing the resulting color of the solution to the accompanying chart identify the ion that affects the pH. State if the solution is acidic, basic, or neutral. Also identify the pectator ion or ions in each case. Dispose of waste in the waste container and clean all test tubes before leaving the station. Sodium TO Basic nosphat Na200 18 Basic CHM 101- Lab Final

Explanation / Answer

In Sodium carbonate Na2CO3 , sodium ion, Na+ is the spectator ion and the CO32- ion affects the PH of the solution by forming carbonic acid with the water.

H2O + CO2 -----> H2CO3

In the Sodium phosphate solution, NaPO4, the spectator ion is Na+ and the ion affecting the PH is the PO4- ion

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