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
What are some of the polymers that you encounter every day? Describe their physical properties. : Polymer Chemistry
An atom has 18 protons and 22 neutrons. Tell me its mass number?
Define oxidation potential and reduction potential? : Electrochemistry Corrosion
Explain the molar mass of chlorine?
Can a Nascent Hydrogen be used for fuel cell without damaging the equipment and if so how good would it be compared to other type of hydrogen.
Name the molecule which is characteristically prevalent in sour milk and tired muscles?
Explain the difference between hcl acid and hcl gas?
HI, I AM SUNIL BISHNOI.I AM PREPARING FOR ISHRO ASTRONOTES EXAM.PLEASE TELL ME ALL ABOUT THIS.
Tell me how many milliliters of water would you add to 100 milliliters of a 0.350 molar solution to make a 0.100 molar solution?
"Co-polymers" consist of two different monomers ("a" and "b") joined in an alternating fashion (ababab...). Block co-polymers also consist of two different monomers, but in this case blocks of polymer containing only a units are joined to blocks of polymer containing only b units (aaaaabbbbb...). How might block co-polymers be synthesized? : Polymer Chemistry
How can chemists control which type of polyethylene (ldpe vs. Hdpe) is generated? : Polymer Chemistry
How tripod is used?
Why are metals often good catalysts? : Polymer Chemistry
Write the mathematical form of nernst equation and give one application? : Electrochemistry Corrosion
Explain the difference in the modern periodic table and mendeleevs table?