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Explain the following ? Matter, Element, Atom, Compound, Molecule, Mixture, Physical change, Chemical change
1 4918Post New General Chemistry Questions
What are the advantages of potentiometric titration?
Why USP put two methods for tapped density? When I should use each one?
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?
What is the metal used to extract copper from the solution of copper sulphate?
What is wave number?
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?
What is iron ore consists of?
State beer-lambert’s law.
What is the role of stannous chloride?
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 nothydrogen power does it ph?
Why is ammonia added? Why is that same amount of ammonia added?
What is a potentiometer titration?
Why are the titration involving edta carried out slowly towards the end point?
What are the products formed after cod analysis?
What is blank solution?
