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Question

Hi

 

Can someone please help me to solve this with steps?

Thank you.

Answer

1 mole of H2O –> 1+1+16=18g (molar mass) –> 6 x 1023 H2O molecules –> 2x6x1023 H atoms + 6×1023 O atoms

12.6 moles of H2O –> 12.6 x 2 x 6 x 1023  H atoms = 151.2 x 1023  = 1.512 x 1025  H atoms#

Hope you have the answer to counter check in case I got it wrong. Too many years ago. I opened my DC’s textbook to double check Avogadro’s constant last night… 🙂 photo attached for info only. 

1 Reply 2 Likes ✔Accepted Answer

Thank you very much, SAHMom. Your answer is correct! 

1 Reply 1 Like

You are welcome and thanks for checking. 🙂

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1 mole of H2O –> 1+1+16=18g (molar mass) –> 6 x 1023 H2O molecules –> 2x6x1023 H atoms + 6×1023 O atoms

12.6 moles of H2O –> 12.6 x 2 x 6 x 1023  H atoms = 151.2 x 1023  = 1.512 x 1025  H atoms#

 

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