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Solved: A 13.03-g sample contains only ethylene glycol (C2H6O2) and propylene glycol
Chapter 13, Problem 130P(choose chapter or problem)
A 13.03-g sample contains only ethylene glycol \(\mathrm{(C_2H_6O_2)}\) and propylene glycol \(\mathrm{(C_3H_8O_2)}\). When the sample is added to 100.0 g of pure water, the resulting solution has a freezing point of \(\mathrm{-3.50~ ^\circ C}\). What was the percent composition of ethylene glycol and propylene glycol in the original sample?
Equation Transcription:
Text Transcription:
(C_2H_6O_2)
(C_3H_8O_2)
-3.50 ^oC
Questions & Answers
QUESTION:
A 13.03-g sample contains only ethylene glycol \(\mathrm{(C_2H_6O_2)}\) and propylene glycol \(\mathrm{(C_3H_8O_2)}\). When the sample is added to 100.0 g of pure water, the resulting solution has a freezing point of \(\mathrm{-3.50~ ^\circ C}\). What was the percent composition of ethylene glycol and propylene glycol in the original sample?
Equation Transcription:
Text Transcription:
(C_2H_6O_2)
(C_3H_8O_2)
-3.50 ^oC
ANSWER:
Step 1 of 5
Percent composition is basically another way to exhibit the concentration of a particular component/solute in a given mixture.
Given data
The mass of the original sample is 13.03 g.
The mass of pure water is 100.0 g.
The freezing point of the solution is –3.50°C.