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Concept explainers
a. Given that 1100. mL of ethyl alcohol weighs 78.5 g, calculate the density of ethyl alcohol.
b. What volume would 1.59 kg of ethyl alcohol occupy?
c. What is the mass of 1.35 L of ethyl alcohol?
d. Pure aluminum metal has a density of 2.70 g/cm3. Calculate the volume of 25.2 g of pure aluminum.
e. What will a rectangular block of pure aluminum having dimensions of 12.0 cm × 2.5 cm × 2.5 cm weigh?
![Check Mark](/static/check-mark.png)
(a)
Interpretation:
The density of ethyl alcohol should be calculated.
Concept Introduction:
Density is mass per unit volume, the ratio of the mass of an object to its volume.
Answer to Problem 18CR
Explanation of Solution
![Check Mark](/static/check-mark.png)
(b)
Interpretation:
Volume of
Concept Introduction:
Density is mass per unit volume, the ratio of the mass of an object to its volume.
Answer to Problem 18CR
Explanation of Solution
=
![Check Mark](/static/check-mark.png)
(c)
Interpretation:
Mass of
Concept Introduction:
Density is mass per unit volume, the ratio of the mass of an object to its volume.
Answer to Problem 18CR
Explanation of Solution
![Check Mark](/static/check-mark.png)
(d)
Interpretation:
Volume of
Concept Introduction:
Density is mass per unit volume, the ratio of the mass of an object to its volume.
Answer to Problem 18CR
Explanation of Solution
![Check Mark](/static/check-mark.png)
(e)
Interpretation:
Weight of rectangular block of pure aluminum given should be calculated.
Concept Introduction:
Density is mass per unit volume, the ratio of the mass of an object to its volume.
Answer to Problem 18CR
Explanation of Solution
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Chapter 3 Solutions
Introductory Chemistry
- 2. Which of the following statements is a theory? A. In a reaction, the total mass of reactants is equal to the total mass of products B. Elements are composed of atoms C. Larger the mass, larger the volume of a substance. D. When you compress a gas, its volume decreases.arrow_forwardClassify each statement as an observation, a law, or a theory. a. Chlorine is a highly reactive gas. b. If elements are listed in order of increasing mass of their atoms, their chemical reactivities follow a repeating pattern. c. Neon is an inert (or nonreactive) gas. d. The reactivity of elements depends on the arrangement of their electrons.arrow_forwardClassify each statement as an observation, a law, or a theory.a. Chlorine is a highly reactive gas.b. If elements are listed in order of increasing mass of theiratoms, their chemical reactivity follows a repeating pattern.c. Neon is an inert (or nonreactive) gas.d. The reactivity of elements depends on the arrangement oftheir electrons.arrow_forward
- Classify each statement as an observation, a law, or a theory.a. Chlorine is a highly reactive gas.b. If elements are listed in order of the increasing mass of their atoms, their chemical reactivities follow a repeating pattern.c. Neon is an inert (or non-reactive) gas.d. The reactivity of elements depends on the arrangement of their electrons.arrow_forwardA 100.0-mL sample of a liquid is found to weigh 220.71 g. a. What would be the mass of 32.25 mL of the same alcohol? b. What volume would be occupied by 25.4 g of this alcohol?arrow_forward3. In order to decide whether a property is chemical or physical, you must know whether a. measuring the property changes mass or energy b. chemical or physical changes occur when the property is measured c. the property involves matter or energy d. the property is intrinsic or extrinsic 4. The specific volume of a substance is the volume per gram of substance. Specific volume is an example of a. a physical, intensive property b. a chemical, extensive property c. a physical, extensive property d. a chemical, intensive propertyarrow_forward
- 1. Identify each of the following as a homogenous or heterogeneous mixture. a. Blood b. Wine c. Salt water d. Sand e. Brass f. Air in the room 9. Milk 2. What is the difference between compounds and elements? Perform the following unit conversions. 3. 25 lb to kg 4. 12.4 in to cm 5. 45.4 liters to gal 6. 34.5 m to mm (1m = 1000 mm) 7. 45.8 km to mi 8. 34500 m to mi 9. 12.5 hrs to seconds 10. 23.5 km/liter to mi/galarrow_forward5. Indicate whether the following statements best describes a solid, liquid, or gas a. It has an indefinite shape but a definite volume. b. It takes the shape and volume of the container. c. The particles are packed closely together and have very little movement. d. The particles are far apart and move very rapidly. 6. Consider the following classifications of matter: heterogeneous mixture, homogeneous mixture, element, and compound. a. In which of these classifications must two or more substances be present? (There is more than one answer.) b. In which of these classifications is separation into simpler substances using physical means possible? (There is more than one answer.)arrow_forwardIdentify each statement as being most like an observation, a law, or a theory.a. All coastal areas experience two high tides and two low tides each day.b. The tides in Earth’s oceans are caused mainly by the gravitational attraction of the moon.c. Yesterday, high tide in San Francisco Bay occurred at 2:43 a.m. and 3:07 p.m.d. Tides are higher at the full moon and new moon than at other times of the month.arrow_forward
- Classify each statement as an observation, a law, or a theory.a. All matter is made of tiny, indestructible particles called atoms.b. When iron rusts in a closed container, the mass of the container and its contents does not change. c. In chemical reactions, matter is neither created nor destroyed.d. When a match burns, heat is released.arrow_forwardWhich of the following statements is FALSE? a. A mixture may be either homogeneous or heterogeneous. b.Matter may be a pure substance or it may be a mixture. c. A pure substance may either be an element or a compound. d. All of these statements are true. e Mixtures may be composed of two or more elements, two or more compounds, or a combination of both.arrow_forwardThe density of sulfuric acid is 1.84 g/mL. What volume of this acid will weigh 15.7 g? A. 16.0 mL B. 1.84 mL C. 28.9 mL D. 8.53 mLarrow_forward
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
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