E17

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Lina Petrossian 1D
Posts: 77
Joined: Fri Oct 05, 2018 12:16 am

E17

Postby Lina Petrossian 1D » Sat Oct 06, 2018 10:58 am

E17: Which sample in each of the following pairs contains the greater number of moles of atoms? (a) 75 g of indium or
80 g of tellurium; (b) 15.0 g of P or 15.0 g of S; (c) 7.36 x 10^27 atoms of Ru or 7.36 x 10^27 atoms of Fe.

I believe I know how to solve a and b, but for c my answer is that they contain the same number of moles of atoms. Did anyone else get this answer?

Alexandra Albers 1D
Posts: 61
Joined: Fri Sep 28, 2018 12:18 am

Re: E17

Postby Alexandra Albers 1D » Sat Oct 06, 2018 11:03 am

This answer is correct, I believe. They have the same number of atoms and moles, so the number of moles for the answer is given by dividing the number of atoms present by Avogadro's constant.

Lina Petrossian 1D
Posts: 77
Joined: Fri Oct 05, 2018 12:16 am

Re: E17

Postby Lina Petrossian 1D » Sat Oct 06, 2018 11:41 am

Thank you!


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