Question

46. If 10 ml of water contains 20 drops. Then number of molecules in a drop of water​

Answer 1

Explanation:

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Answer 2

Explanation:

10ml of water contains= 20 drops

i.e 1 drop is contained by 10/20 ml of water

1 drop = 10/20

=0.5ml = 0.0005L

as 22.4L = 6.022×10²³ molecules

so, 0.0005L = 6.022×10²³/22.4 ×0.0005

= 1.344×10¹9 molecules

hence, no.of molecules in a drop of water = 1.344×10¹9 molecules