In an experiment soap solution was used against 3 separate samples of water. Each sample was later boiled and soap added. Each water sample was...

In an experiment soap solution was used against 3 separate samples of water. Each sample was later boiled and soap added.Each water sample was 1000cm³. The results are tabulated below.

(a) Which sample was likely to be soft water? Explain.
(b) State the cause of change in volume of soap used to form lather in sample III.

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(a) Sample II
- Requires little soap to lather
(b) Temporary hardness removed after boiling.

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sharon kalunda answered the question on March 28, 2019 at 12:40

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