For breakfast, the nihilistic Rick Sanchez ate 100 g of cereal mixed with 20 g of milk. A 1.500 g sample of the same cereal was analyzed using the Kjeldahl method, and the liberated NH3 was distilled into 50 mL of a 0.0227 M HCl solution, and back-titrated with 2.85 mL of 0.0112 M NaOH solution. A 1.100 g sample of milk was also analyzed, and the liberated NH3 was distilled into 55 mL of a 0.0234 M HCl solution, and back-titrated with a 3.10 mL of 0.0121 M NaOH.   Use the values: MM N=14.07 g/mol. meat= 6.25 dairy= 6.38 cereal= 5.70   1. What is the % protein in the cereal sample? a. 5.90% protein b. 10.21% protein c. 11.80% protein d. 20.42% protein   2.  What is the % protein in the milk sample? a. 5.90% protein b. 10.21% protein c. 11.80% protein d. 20.42% protein   3. How many grams of protein did Rick consume over-all? a. 3.749 g b. 7.942 g c. 5.901 g d. 10.21 g

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For breakfast, the nihilistic Rick Sanchez ate 100 g of cereal mixed with 20 g of milk. A 1.500 g sample of the same cereal was analyzed using the Kjeldahl method, and the liberated NH3 was distilled into 50 mL of a 0.0227 M HCl solution, and back-titrated with 2.85 mL of 0.0112 M NaOH solution. A 1.100 g sample of milk was also analyzed, and the liberated NH3 was distilled into 55 mL of a 0.0234 M HCl solution, and back-titrated with a 3.10 mL of 0.0121 M NaOH.

 

Use the values:

MM N=14.07 g/mol.

meat= 6.25

dairy= 6.38

cereal= 5.70

 

1. What is the % protein in the cereal sample?

a. 5.90% protein
b. 10.21% protein
c. 11.80% protein
d. 20.42% protein
 
2.  What is the % protein in the milk sample?
a. 5.90% protein
b. 10.21% protein
c. 11.80% protein
d. 20.42% protein
 
3. How many grams of protein did Rick consume over-all?
a. 3.749 g
b. 7.942 g
c. 5.901 g
d. 10.21 g
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