what is hardnes & how hardnes can be analysed.
Answer Posted / karri.sureshkumar07
hardness means presence of Calcium and Magnesium carbonates
and bicarbonates, these can be analysed by titration with
EDTA ( Ethylene Diamino tetra acetic acid ) using muroxide
and Eriochrome black-T as indicators
For calcium hardness muroxide is the indicator colour
change is pink to violet ( brinjal flower colour)
For total hardness determination EBT is the indicator
colour cange is pink to blue
Is This Answer Correct ? | 12 Yes | 1 No |
Post New Answer View All Answers
Define an isomer?
Practically why we get negative absorption in UV SPECTROPHOTOMETER when the time of cleaning sample analysis. is negative absorption in Uv valid or not?
Why is Francium(Fr) so difficult to react with water?
Explain the secondary structure of proteins?
Define the full form of hcl?
An atom has 18 protons and 22 neutrons. Tell me its mass number?
Observe the following number to four significant figures and express the result in standard exponential notation: 0.006543210?
what is the difference between poolymer concrete and normal concrete
Explain how do you extract ephedrine from a mineral block?
Besides the extent of branching, can you think of any other structural parameters that might lead to differences in physical properties? : Polymer Chemistry
Explain the chemical formula for dichromate?
What is bed worth rule? : Electrochemistry Corrosion
What are the methods used to control the corrosion? : Electrochemistry Corrosion
What is paint? : Electrochemistry Corrosion
Differentiate electroplating and electro less plating? : Electrochemistry Corrosion