Why is eriochrome black t indicator cannot be used in this experiment?
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why PH scale range is 14? why it is not less or not greater than 14? solution of HCl or hydrogen containing liquid has a PH. but if the solution is KMnO4 here not hydrogen power does it PH? explain plz....
Is air mixture or compound ?
pH is having unit?
Explain acid gas?
Explain the Different types of solutions ?
Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?
Why USP put two methods for tapped density? When I should use each one?
How is the measurement of ph made?
In the calculation of calorific value of any fuel why the latent heat of vap. of water is taken as 587 kj/mol whereas actually it is 540kj/mol?
How is petroleum manufactured?
which metal is found abundantly in the earths crust??
why the pH scale range is 0-14?
1 Answers Clariant, MIU, Torrent Pharma,