Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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3
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.
) A 1 gallon bottle of a certain brand of bleach costs $1.49. Determine the cost to buy enough bleach to supply 100.0 grams of active ingredient (NaOCl), assuming 6.25% active ingredient by mass and a density of 1.05 g/ml.
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- Prepare a solution of NaCl by accurately weighing approximately 1.45g of NaCl into a 100 mL beaker / conical flask. Record the mass of the sample. Add 25 mL distilled water. Mix until all crystals dissolve. Prepare a solution of magnesium chloride by accurately weighing approximately 3.61 g of MgCl2٠6H20 into a 100 mL beaker / conical flask. Record the mass of the sample. Add 25 mLdistilled water. Mix until all the crystals dissolve. 1. Calculate the molality of the NaCℓ and MgCℓ2.6H2O solutions. 2. Calculate the total mass of water (solvent) in kg: a) Mass of crystal water added (kg): b) Mass of water added (kg): c) Total mass of water added (kg): 3. Calculate the molality of MgCℓ2. All questions follow on from each other. Thanks very much.arrow_forwardOrganic solvent has a density of 1.12g/mL and is insoluble in water. If organic solvent is mixed with water, water will be the top layer..arrow_forwardWhat volume of iron (7.87 g/cm3) would be required to balance a 1.25 cm3 sample of lead (density 11.4 g/cm3) on a two-pan laboratory balance?arrow_forward
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