how many molecules are there in 36 grams of water?

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Solution

Dear Student,

The computation are expressed below,

$M o l a r m a s s o f H_{2} O = 18 \frac{g}{m o l} M a s s o f H_{2} O = 36 g N o . o f m o l e s = \frac{36 g}{18 \frac{g}{m o l}} = 2 m o l e s 1 m o l e c o n t a i n s 6.022 \times 10^{23} m o l e c u l e s S o f o r 2 m o l e s \Rightarrow 12.044 \times 10^{23} m o l e c u l e s H e n c e 36 g m o f w a t e r c o n t a i n s 12.044 \times 10^{23} m o l e c u l e s$

Regards.

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