Textbook Question
Answer the following questions. (d) A particular sample of crude oil has a density of 0.85 g/mL. What is the mass of 1.00 barrel of this crude oil in kg, where a barrel of oil is exactly 42 gallons?
Ch.1 - Chemical Tools: Experimentation & Measurement
Chapter 1, Problem 112c
A bag of Hershey's Kisses contains the following information: Serving size: 9 pieces = 41 g Calories per serving: 230 Total fat per serving: 13 g (c) How many Calories are in one Hershey's Kiss?
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Determine the number of Hershey's Kisses in one serving. According to the information provided, there are 9 pieces in one serving.
Identify the total number of calories in one serving. The bag states that there are 230 calories per serving.
Calculate the number of calories per individual Hershey's Kiss by dividing the total calories per serving by the number of pieces per serving.
Use the formula: \( \text{Calories per Kiss} = \frac{\text{Total Calories per Serving}}{\text{Number of Pieces per Serving}} \).
Substitute the values into the formula to find the calories in one Hershey's Kiss.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Caloric Content
Calories are a measure of energy provided by food. In this context, the total caloric content of a serving size is given, which allows us to determine the energy provided by individual pieces of candy. Understanding how to break down total calories into per-piece values is essential for nutritional analysis.
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Serving Size
A serving size is a standardized amount of food that is used to provide nutritional information. In this case, the serving size is specified as 9 pieces of Hershey's Kisses, which weighs 41 grams. Knowing the serving size is crucial for calculating the nutritional content per individual piece.
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Unit Conversion
Unit conversion is the process of converting a quantity from one unit to another. In this scenario, it involves calculating the number of calories in one piece of candy by dividing the total calories in a serving by the number of pieces in that serving. This concept is fundamental in various scientific calculations, including those in chemistry and nutrition.
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Related Practice
Textbook Question
A bag of Hershey's Kisses contains the following information:
Serving size: 9 pieces = 41 g
Calories per serving: 230
Total fat per serving: 13 g
(a) The bag contains 2.0 lbs of Hershey's Kisses. How many Kisses are in the bag?
Textbook Question
A bag of Hershey's Kisses contains the following information:
Serving size: 9 pieces = 41 g
Calories per serving: 230
Total fat per serving: 13 g
(b) The density of a Hershey's Kiss is 1.4 g/mL. What is the volume of a single Hershey's Kiss?
Textbook Question
Vinaigrette salad dressing consists mainly of oil and vinegar. The density of olive oil is 0.918 g/cm3, the density of vinegar is 1.006 g/cm3, and the two do not mix. If a certain mixture of olive oil and vinegar has a total mass of 397.8 g and a total volume of 422.8 cm3, what is the volume of oil and what is the volume of vinegar in the mixture?
Textbook Question
At a certain point, the Celsius and Fahrenheit scales 'cross,' giving the same numerical value on both. At what tempera-ture does this crossover occur?
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Textbook Question
Imagine that you place a cork measuring 1.30 cm * 5.50 cm * 3.00 cm in water and that on top of the cork you place a small cube of lead measuring 1.15 cm on each edge. The density of cork is 0.235 g/cm3, and the density of lead is 11.35 g/cm3. Will the combination of cork plus lead float or sink?
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