g-funk
Joined: 06 May 2005
Posts: 3
Location: australia
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 Posted: Thu May 19, 2005 7:14 pm Post subject: answer comparo |
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i got the answers to the following as a and b can anyone else concur so i can coompare and make sure i am on the right track...
Hexachlorophene has been used in germicidal soap. What is its molar mass if 0.640 g of the compound, dissolved in 25.0 g of chloroform, produces a solution whose boiling point is 61.93oC? (The normal boiling point for chloroform is 61.70oC and it Kbp is 3.63 degrees/molal.)
a. 111 g/mol
b. 267 g/mol
c. 404 g/mol
d. 625 g/mol
#836 of VapourPressure-Bank64
The vapour pressure of water at 20oC is 2.320 kPa. When 0.040
mol of NaCl is dissolved in 100 mL of water at 20oC the vapour
pressure of the solution is:
a. 2.29 kPa
b. 2.34 kPa
c. 2.35 kPa
d. 2.22 kPa
e. 2.31 kPa |
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