The tabulated results below were obtained by titration 10.0 ...
The tabulated results below were obtained by titration 10.0 cm3 of water with soup. The titration was repeated with the same sample of water after boiling. The ratio of permanent to temporary hardness is
A.
1.5
B.
1.4
C.
4.1
D.
5.1
Correct answer is C
The ratio of permanent to temporary hardness will be 20:(20 - 15) = 20:5 = 4:1
Similar Questions
Which of the following is NOT a redox reaction? ...
The octane number of zero is assigned to ...
A compound commonly used for sterilization and preservation of specimens and food is ...
In the diagram above , X is the ...
A device used in the laboratory for intermittent production of gases without heating is ...
What is the atomic number of Oxygen? ...
How many moles of H\(_2\)SO4 are there in 50 cm\(^3\) of 0.108 mol dm\(^3\) solution of th...
The major component of the slag from the production of iron is? ...