Thursday, June 7, 2012

What is the concentration of sugar (C12H22O11) in mol L–1 if its 20 g are dissolved in enough water to make a final volume up to 2L?

What is the concentration of sugar (C12H22O11) in mol L–1 if its 20 g are dissolved in enough water to make a final volume up to 2L?

 

molar mass of C12H22O11 = 12*12. + 1*22 + 11*16  = 342 g / mol 

 number of moles of solute = mass of solute / molar mass of solute
                                         = 20/342  = 0.0585 moles 


molarity (M ) of  the solution = 0.0585/2  = 0.0293 M
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5 comments:

  1. AnonymousJuly 22, 2015 at 10:11 AM

    very helpfull

    ReplyDelete
  2. UnknownSeptember 27, 2015 at 8:18 AM

    yeah! i got my answer

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  3. AnonymousMay 2, 2016 at 9:38 AM

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