The concentration of urea (CH4N2O) in a sample of urine is 8.7
number of significant figures.
Note: Reference the SI prefixes table for additional information.
Part 1 of 2
. The molar mass of urea is 60.05
g
mol
. Be sure each of your answer entries has the correct
What is the
percent concentration of urea in the urine?
%
weight
volume
W
urea
To calculate the percent concentration of urea in the urine, we can use the formula:
% concentration = (mass of urea / total mass of solution) * 100
First, we need to calculate the mass of urea in the sample of urine:
- The molar mass of urea is 60.05 g/mol
- The concentration of urea in the urine sample is 8.7 g
Now, we can calculate the total mass of the solution (urine sample):
Total mass = mass of urea = 8.7 g
Using the formula above:
% concentration = (8.7 g / 8.7 g) * 100
% concentration = 100%
Therefore, the percent concentration of urea in the urine sample is 100%.