Question

Q-1} Which one represents 360g of water?

(a) 2 moles of H2O.

(b) 20 moles of water.

(c) 6.022 ✖ 10²³ molecules of water.

(d) 1.2044 ✖ 10^25 molecules of water.
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Answer 1

Answer:

Explanation:

TThe molar mass of water is 18 g/mol.

360 g of water corresponds to  

18g/mol

360g

​  

=20mol.

It is also equal to 20mol×6.023×10  

23

molecules/mol=1.2044×10  

25

molecules.

Thus, the options (ii) and (iv) correctly represents 360 g of water.

Answer 2

Answer:

20 moles of water is correct

Explanation:

one mole of water is

H2O= 1×2+16= 18 H = 1. 0= 16. 20 mole of water = 18 × 20 = 360