Question

During an experiment the students were asked to prepare a 20% (mass/mass)
solution of sugar in water. Ram dissolved 20 gm of sugar in 100 gm of water while
Sohan prepared it by dissolving 20 gm of sugar in water to make 100 gm of solution.
(a) Are the two solutions of the same concentration.
(b) Compare the mass% of the two solutions.
(C) Whose solution contain less amount of solute.​

Answer 1

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The essential component for rusting is the contact of metal with oxygen and moisture. When the iron gate is painted, it protects the iron to get in contact with oxygen, hence prevents it from rusting.

Answer 2

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The essential component for rusting is the contact of metal with oxygen and moisture. When the iron gate is painted, it protects the iron to get in contact with oxygen, hence prevents it from rusting.