Chapter 1, Problem 1.91E

Suppose that you are closing a cabin in the north woods for the winter and you do not want the water in the toilet tank to freeze. You know that the temperature might get as low as 30. C, and you want to protect about 4.0 L water in the toilet tank from freezing. Calculate the volume of ethylene glycol (density = 1.113 g/mL; molar mass = 62.1 g/mol) you should add to the 4.0 L water.

35 kJkJ to calories

Convert 15.00 kJ to calories (cal). 15.00 kJ = Convert 203 kcal to kilojoules (kJ). 203 kcal =

One pound of body fat releases approximately 4500 kcal of energy when it is metabolized. How many joules of energy are released when 5.0 pounds are metabolized? How many BTUs?

Part D Food calories D1 Name of food product Naked juice D2 Mass of food nutrients in one serving Serving size 240ml Carbohydrate 33 g, protein 2 g fat D3 Calculations for calories (cal) or kilocalories (kcal) per serving Carbohydrate protein 0 g kcal(cal) kcal (cal) kcal (cal) Fat D4 Total calories (cal or kcal) per serving kcal(cal) 140 kcal (cal) D5 Calories ( for one serving ) listed on the label D6 Percentage of total calories from carbohydrate D7 Percentage of total calories from protein D8 Percentage of total calories from fat Q4 How does your calculated number of calories in one serving compare to the calories listed on the food product nutrition label? Comment on it. % % stv 26 MacBook Air

Part D: Food Calories Naked Juice Serving size 240 mL D1. Name of food product D2. Mass of food nutrients in one serving Fat Carbohydrate 33 g, Protein g, D3. Calculations for Calories (Cal) or kilocalories (kcal) per serving kcal (Cal) Carbohydrate Protein kcal (Cal) Fat kcal (Cal) D4. Total Calories (Cal or kcal) per serving kcal (Cal) D5. Calories (for one serving) listed on the label cal (Cal) D6. Percentage of total Calories from carbohydrate % (show calculations) D7. Percentage of total Calories from protein (show calculations) % D8. Percentage of total Calories from fat (show calculations) % Q 4. How does your calculated number of Calories in one serving compare to the Calories listed on the food product nutrition label? Comment on it.

If the heat of vaporization of water is 539.5 calories per gram, how many calories of heat are needed to vaporize 1.41 kilograms of water.  Express your answer in calories.

On a 16.5 ounce bag  of potato chips, the manufacturer states that the single serving is one ounce, which is equivalent to 120 calories. How many kilojoules are in this bag of potato chips?

A teaspoon of the carbohydrate sucrose (common sugar) contains 16 Calories (16 kcal). What is the mass of one teaspoon of sucrose if the average number of Calories for carbohydrates is 4.1 Calories/g?