Chemical Forums

Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: dmlaj on October 28, 2004, 10:51:06 PM

Title: chem
Post by: dmlaj on October 28, 2004, 10:51:06 PM

A 25.5g PIECE OF CHEDDAR CHEESE CONTAINS 37% FAT, 28% PROTEIN, AND 4% CARBOHYDRATE. THE RESPECTIVE FUEL VALUES FOR PROTEIN, FAT, AND CARBOHYDRATES ARE 17,38, AND 17kJ/g, RESPECTIVELY. THE FUEL VALUE FOR THIS PIECE OF CHEESE IS ___________ kJ.

Please help me I needed to know how to worh this problem.

Title: Re:chem
Post by: AWK on October 29, 2004, 03:29:32 AM

(25.5/100)x(37x38+28x17+4x17)

Title: Re:chem
Post by: dmlaj on October 29, 2004, 09:30:18 AM

Quote from: AWK on October 29, 2004, 03:29:32 AM

(25.5/100)x(37x38+28x17+4x17)

 Thank you so much for showing me how to work this problem

Title: Re:chem
Post by: pizza1512 on January 20, 2005, 08:37:04 AM

How do you work out the values of

Fat
Protein
Carbohydrates
Salt
Water

in foods?

Title: Re:chem
Post by: Donaldson Tan on January 21, 2005, 10:32:28 PM

i think certain type of spectrocopy not only identify the compound, but also can tell you its distribution. eg. raman spectroscopy. another way is to carry out a chemical analysis.