Question

90 g h2o number of moles of proton​

Answer 1

Solution :-

▪️Mass of $H_2O$ = 90g

▪️Molar mass of $H_2O$ = 18g

Now as no. of Moles = Given mass upon molar mass

= 90 ÷ 18

= 5 moles

Now as in one molecules of $H_2O$ There are ( 1(2) + 8 ) = 10 proton

So in one mole of $H_2O$ there is 10 moles of proton

So in Five moles There are

= 10 × 5 moles of proton

= 50 moles of proton present in 90 g of $H_2O$

Answer 2

Answer:

Explanation:

Mass of H2o=90gm

Molar mass of h2o=18gm

GAM/GMM=Na particle

18gm of H2o=8Na particles

1gm of water=8Na particle/18

90gm of H2o =8×6.022×10^23×90/18

Hence it has 40 Na proton