Chemistry, asked by ShreyaDarban, 11 months ago

The actual weight of a molecule of water is
(1) 18 gm
(2) 2.99 x 10-23
(3) both (1) and (2) are correct
(4) None of these
plz explain with soln​

Answers

Answered by dandelion32
4

Explanation:

2) 2.99 ×10-23...the sol. is we knew,n=m(mass)÷M(molar mass=18) and also n=no. given÷avogadro's no. therefore m÷M=N÷avag.no. and we knew M=1 therefore 'm' will be equal to M÷avag.no. i.e 18÷avag.no. which will be approx. equal to option C.

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