Question

Which one of the following represents 180g of water?
(a) 5 Moles of water
(b) 90 moles of water
(c) 6.022 x 10²⁴ molecules of water

Answer 1

Which one of the following represents 180g of water:

Correct Option is C:  6.022 x 10²⁴ molecules of water
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Explanation 

1mole of water =18g

As we know that one mole of water has 6.022 x 10²³ molecules of water.

1mole[18g] of water-------------> 6.022 x10²³ molecules of water.
180g of water--------->?

=180x6.022 x10²³/18
=10x6.022 x10²³/
=6.022 x 10²⁴ molecules of water.

∴180g of water contains 6.022 x 10²⁴ molecules of water.

Answer 2

Explanation:

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