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....
4 23654why in atomic mass electron is not include while proton and neutron include? although electron is a part of atom.
2 4706why all the concentration of chemical species are measured using water as solvent (for examole 1N NaOH means 40 g of NaOH in one litre of water)eventhough there are so many solvents available?
1 3786why evolution select ATPin many places like metabolism and other places rather then GTP, TTP etc. and why GTP selected in activation of G-alfa in G protein signalling ??????
1810in Einstein's mass energy relation e=mc2 for what is c used or why is light required for reactions. Because the reactions are with help of neutrons
1 3239if this element X combines with another element Y whose electronic configuration is 2, 8, 7 what will be the formula of the compound thus formed? State how did you arrive at this formula
2 6462Post New General Chemistry Questions
Explain substituted hydrocarbon?
Cholesterol is a compound suspected of causing hardening of the arteries. The formula of cholesterol is C27H46O. a. A sample of cholesterol is isolated from the arterial lining of a 60-year-old American male. What is the formula of this compound? b. Cholesterol is extracted from a chicken’s egg. What is the formula of this compound?
Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?
How is brass solution prepared?
What is the chemical composition of fat in human body?
What are the electrodes used in potentiometer titration?
What is fluidity of a liquid?
What is the white precipitate produced at the end of point?
What are the electrodes used in the measurement of ph for the determination of pka?
What are the constituents of cements?
Why is estimation of copper done at 620 nm wave length?
why is their exotherm while addition of reducing agents in reduction reaction?
Why USP put two methods for tapped density? When I should use each one?
What is dextro-rotatory and levo-rotatory?
What is the unit of ph?
