Asample of an unknown compound has a percent composition of 52.14% carbon, 13.13% hydrogen, and 34.73% oxygen. which compounds could the sample be?
-select all that apply

a. ch3ch3ch2o2
b. c2h5oh
c. c4h10o2
d. c4h12o2
e. ch3ch3ch2ooh

The grooves or folds of the brain are called

Identify a strong intermolecular force of attraction between an alcohol

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.