Question

9. (a)Which postulates of Dalton's atomic theory is result of law of conservation of
mass and which postulate can explain the law of multiple proportions,
(b)Explain the method of separation used in detail for obtaining pure copper
sulphate from an impure sample of copper sulphate.
​

Answer 1

Explanation:

a) The postulate of Dalton's “Atoms are indivisible particles, which can neither be created nor destroyed in a chemical reaction” is the result of the law of conservation of mass.

b)Evaporate water from the copper sulphate solution so as to get a saturated solution. Cover the solution with a filter paper and leave it undisturbed at room temperature to cool slowly for a day. You will obtain the crystals ofcopper sulphate in the china dish. The crystallisation method is used to purify solids.

hope its help you

Mark me as brainlist