E.27  [ENDORSED]

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Helen Shi 1J
Posts: 78
Joined: Sat Jul 22, 2017 3:00 am

E.27

Postby Helen Shi 1J » Thu Oct 05, 2017 4:04 pm

Can someone explain part a) Calculate the mass, in grams, of one water molecule?

Nisarg Shah 1C
Posts: 54
Joined: Sat Jul 22, 2017 3:00 am

Re: E.27  [ENDORSED]

Postby Nisarg Shah 1C » Thu Oct 05, 2017 4:27 pm

In order to solve this problem, you would first find the mass of one mole of water, which is its molar mass (18g/mol). Because each mole of water contains 6.02x10^23 water molecules, you would divide the mass of one mole of water by Avogadro's number to find the mass one water molecule.

Manasvi Paudel 1A
Posts: 50
Joined: Sat Jul 22, 2017 3:00 am

Re: E.27

Postby Manasvi Paudel 1A » Thu Oct 05, 2017 7:18 pm

I did this question by calculating the molar mass of water, and then converting that to molecules using a conversion equation with avogadro's number.


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