Question

The concentration of cholesterol ($C_{27}H_{46}O$) in normal blood is approximately 0.005 M. Cholesterol Part A How many grams of cholesterol are in 250 mL of blood? Express your answer to two significant figures and include the appropriate units. Mass = 0.48 g Previous Answers All attempts used; correct answer displayed Enter your answer using units of mass. Part B A medical test for cholesterol requires 24 mg. How many mililiters of blood are needed to perform the test? Express your answer to two significant figure and include the appropriate units.

          The concentration of cholesterol ($C_{27}H_{46}O$) in normal blood is approximately 0.005 M.
Cholesterol
Part A
How many grams of cholesterol are in 250 mL of blood?
Express your answer to two significant figures and include the appropriate units.
Mass = 0.48 g
Previous Answers
All attempts used; correct answer displayed
Enter your answer using units of mass.
Part B
A medical test for cholesterol requires 24 mg. How many mililiters of blood are needed to perform the test?
Express your answer to two significant figure and include the appropriate units.

Show more…

The concentration of cholesterol (C27H46O) in normal blood is approximately 0.005 M.
Cholesterol
Part A
How many grams of cholesterol are in 250 mL of blood?
Express your answer to two significant figures and include the appropriate units.
Mass = 0.48 g
Previous Answers
All attempts used; correct answer displayed
Enter your answer using units of mass.
Part B
A medical test for cholesterol requires 24 mg. How many mililiters of blood are needed to perform the test?
Express your answer to two significant figure and include the appropriate units.

Added by Melissa A.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Syon Schlecht

Step 1

Given: Concentration of cholesterol in blood = 0.005 M Volume of blood = 250 mL To convert from moles to grams, we need to know the molar mass of cholesterol. The molar mass of cholesterol is approximately 386.65 g/mol. Now, we can calculate the mass of Show more…

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Can I get help on Part B? The concentration of cholesterol in normal blood is approximately 0.005 M. Part A: How many grams of cholesterol are in 250 mL of blood? Express your answer to two significant figures and include the appropriate units. Mass = 0.48 g. Previous Answer: All attempts used the correct answer displayed. Enter your answer using units of mass. Part B: A medical test for cholesterol requires 24 mg. How many milliliters of blood are needed to perform the test? Express your answer to two significant figures and include the appropriate units.

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