Question

how many mole in 9 g h2o
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Answer 1

Answer:

Explanation:

No. Of moles = given mass / molar mass

Molar mass of  H₂O

H = 1 ,O = 16

Molar mass is =2 × 1 + 16

                        =18

Given mass = 9

No. Of moles =  $\frac{9}{18}$

                       $= \frac{1}{2}$

                      $= 0.5 mole$

Answer 2

No of moles= Given mass/molar mass
N=9/18=1/2
No of Moles= 0.5