67. Solving a chemistry problem

67. Solving a chemistry problem

4. Determine the calorie content of 250 g of a food product containing 50% water, 30% protein, 10% fat and 10% carbohydrates. The calorie content of proteins and carbohydrates is 17.1 kJ / g, the calorie content of fats is 38 kJ / g.

Additional information:

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.