helpppppppppppppppppppppppppppppppppppppppp

Apr 4th, 2015
Anonymous
Category:
Biology
Price: $10 USD

Question description

A sample of an ethanol-water solution has a volume of 54.2cm^3 and a mass of 49.6 g. What is the percentage of ethanol (by mass) in the solution? (Assume that there is no change in volume when the pure compounds are mixed.) The density of ethanol is 0.789g/cm^3 and that of water is .998g/cm^3. Alcoholic beverages are rated in proof, which is a measure of the relative amount of ethanol in the beverage. Pure ethanol is exactly 200 proof. What is the proof of the given ethanol-water solution?

Tutor Answer

(Top Tutor) Studypool Tutor
School: UC Berkeley
PREMIUM TUTOR

Studypool has helped 1,244,100 students

Review from student
Studypool Student
" Totally impressed with results!! :-) "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1819 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors