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Andru [333]
2 years ago
13

Please Please Please help + show the work please! :)

Chemistry
2 answers:
Rudiy272 years ago
7 0

Molar mass of SmO or sodium methylate is 160g/mol

Now

  • No of moles =Given mass /Molar mass

Given mass

  • No of moles ×Molar mass
  • 9.3×10^{-3}×160
  • 1.488g
Mazyrski [523]2 years ago
4 0
The gram-formula mass of Sm is 150.36 u, and the gram-formula mass of O is 15.999 u, so the gram-formula mass of SmO is about 150.36+15.999 = 160.36 g/mol.

So, there are about (9.30 * 10^-3)(160.36)=1.49 grams
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Answer:

C3F7

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hence F7

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B is <em>wrong</em>. Metals lose electrons.

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Also I prefer to deal with pressure in atm rather than mmHg, so divide the pressure by 760 to get it in atm.

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3 0
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