Which of the following water samples will have the highest titre value when titrated for the Ca2+ ions using soap solution?
a
Permanently hard water after boiling
b
emporarily hard water after boiling
c
Rain water stored in a glass jar for two years
d
Permanent hard water passed through permuitit
Explanation
Correct Option
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Discussions (8)

GOG16
1 year ago
Permanent hardness cannot be removed by boiling therefore it will have the highest titre value for Ca2+

Aderonke2002
1 year ago
in Temporaray Hardness it is removed by boiling so the ca2+ decomposes,while in temporary it is removed using chemicals and there is presence of Ca2+ and magnesium

Oluwaladunmi
1 year ago
The titre value is the amount of soap needed to react with all the calcium ions; so, the higher the amount of calcium atoms. the higher the titre value... the solution with the greatest amount of calcium ions has the highest titre value which is the option A



