Monday
April 21, 2014

Homework Help: chemistry

Posted by lucy on Thursday, April 25, 2013 at 2:04am.

A compound was found to be composed of the following amounts of elements: 20.00% wt% C, 26.64wt% O, 46.65 wt%N, and 6.71wt%H. A 6.125 grams sample of this compound dissolved in 46.205 grams of water as a solution was found to have a freezing point of -3.260C. The density of this solution was 1.066g/mL. Given that the freezing point depression constant and boiling point elevation constan for water are 1.766C/m and .512C/m, respectively answer the following questions.
a) calculate the molality (m) of this solution if the solute is a nonelectrolyte (i=1)
b) calculate of molarity (M) of this solution
c) the boiling point of the above solution
d) calculate the molecular mass of the dissolved solute
e) determine the empirical and molecular formula of the solute

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - Which of the following is generally defined as a substance composed ...
chemistry - A 25g sample of a compound composed of Carbon, Hydrogen, and Oxygen ...
Chemistry - A compound was found to contain copper and chlorine. The mass of the...
Chemistry - I did the work, but I need help checking it... A compound contains ...
Chemistry - A compound contains only carbon, hydrogen, nitrogen, and oxygen. ...
chemistry - An orgnaic compound contains C, H, No, and O. Combustion of 0.1023 g...
Chemistry - The mass of a sample of a liquid compound was found to be 0.534 g ...
chemistry - A 6.58g sample of compound was placed in a 12.6 L container. At 25....
chemistry - An analysis of an unknown compound found it contained 40 g potassium...
Chemistry - A 1.8 mole sample of a compound weighs 195 g and is found to be 11....

Search
Members