The concentration of urea (CH4N2O) in a sample of urine is 8.8

Question

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
L

g
mol

Be sure each of your answer entries has the correct

What is the

weight
volume

percent concentration of urea in the urine?

%

urea

Answer 1

The weight percent concentration of urea in the urine can be calculated using the formula:

Weight percent = (mass of urea in sample / total mass of sample) x 100

First, we need to convert the concentration of urea in the sample from grams per liter to grams per 100 mL to make the calculation easier.

8.8 g/L x 100 mL /1000 mL = 0.88 g/100 mL

Then, we can calculate the weight percent concentration:

Weight percent = (0.88 g / 100 mL) x 100 = 0.88%

Therefore, the weight percent concentration of urea in the urine sample is 0.88%.