CHEMISTRY THE CENTRAL SCIENCE >EBOOK<
14th Edition
ISBN: 9780136873891
Author: Brown
Publisher: PEARSON
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Textbook Question
Chapter 1.7, Problem 1.13.1PE
Practice Exercise 2
The density of the organic compound benzene is 0.879 g/ml. Calculate the mass in grams of 1.00 qt of benzene.
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EXERCISE
1-3 Physical Properties and Changes
Identify each physical property and physical change mentioned in each of these
statements. Also identify the qualitative and the quantitative information given in each
statement.
(a) The blue chemical compound azulene melts at 99°C.
(b) The white crystals of table salt are cubic.
(c) A sample of lead has a mass of 0.123 g and melts at 327°C.
(d) Ethanol is a colorless liquid that vaporizes easily; it boils at 78°C and its
density is 0.789 g/mL.
easurements and Calculations: Dimensional Analysis
cermining a property such as density requires scientific measurements a
culations. The result of a measurement, such as 6.544 g or 8.30 mL, usua
Exercise
what is the mass of la cm3 of gold?
Dyunda 19.3 glem"
Dradd -
glcm
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What is the mass of 0.75L of water?
H20=
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Question 15
The average distance between the earth and the moon is 384,403 km. How many dollar
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Chapter 1 Solutions
CHEMISTRY THE CENTRAL SCIENCE >EBOOK<
Ch. 1.2 - Practice Exercise 1 Which of the following is the...Ch. 1.2 - Aspirin is composed of 60.0% carbon, 4.5%...Ch. 1.5 - Practice Exercise 1 Which of the following weights...Ch. 1.5 - Practice Exercise 2 How many picometers are there...Ch. 1.5 - Practice Exercise 1 Using Wolfram Alpha...Ch. 1.5 - Practice Exercise 2 Ethylene glycol, the major...Ch. 1.5 - Practice Exercise 1 Platinum, Pt. is one of the...Ch. 1.5 - Practice Exercise 2 Calculate the density of a...Ch. 1.5 - Which of the following objects has the greatest...Ch. 1.5 - Prob. 1.5.2PE
Ch. 1.6 - Which of the following numbers in your personal...Ch. 1.6 - Practice Exercise 2 The back inside cover of the...Ch. 1.6 - Practice Exercise 1 An object is determined to...Ch. 1.6 - Practice Exercise 2 How many significant figures...Ch. 1.6 - Ellen recently purchased a new hybrid car and...Ch. 1.6 - Practice Exercise 2 It takes 10.5 s for a sprinter...Ch. 1.6 - Practice Exercise 1 You are asked to determine the...Ch. 1.6 - Practice Exercise 1 At a particular instant in...Ch. 1.7 - Practice Exercise 2 By using a conversion factor...Ch. 1.7 - Practice Exercise 1 Fabiola, who lives in Mexico...Ch. 1.7 - Practice Exercise 2 A car travels 28 mi per gallon...Ch. 1.7 - Practice Exercise 2 A car travels 28 mi per gallon...Ch. 1.7 - Practice Exercise 2 The surface area of Earth is...Ch. 1.7 - Practice Exercise 1 Composite decking is a...Ch. 1.7 - Practice Exercise 2 The density of the organic...Ch. 1.7 - Practice Exercise 2 If the mass of the container...Ch. 1 - Prob. 1ECh. 1 - Prob. 2ECh. 1 - Musical instruments like trumpets and trombones...Ch. 1 - Consider the two spheres shown here, one made of...Ch. 1 - Is the separation method used in brewing a cup of...Ch. 1 - Identify each of the following as measurements of...Ch. 1 - Three spheres of equal size are composed of...Ch. 1 - The three targets from a rifle range shown below...Ch. 1 - What is the length of the pencil in the following...Ch. 1 - How many significant figures should be reported...Ch. 1 - Consider the jar of jelly beans in the photo. To...Ch. 1 - The photo below shows a picture of an agate stone....Ch. 1 - Classify each of the following as a pure substance...Ch. 1 - Classify each of the following as a pure substance...Ch. 1 - 1.15 Give the chemical symbol or name for the...Ch. 1 - 1.16 Give the chemical symbol or name for each of...Ch. 1 - A solid white substance A is heated strongly in...Ch. 1 - 1.18 You are hiking in the mountains and find a...Ch. 1 - 1.19 In the process of attempting to characterize...Ch. 1 - 1.20
Read the following description of the element...Ch. 1 - Prob. 21ECh. 1 - A match is lit and held under a cold piece of...Ch. 1 - Which separation method is better suited for...Ch. 1 - Two beakers contain clear, colorless liquids. When...Ch. 1 - Prob. 25ECh. 1 - Prob. 26ECh. 1 - Prob. 27ECh. 1 - Prob. 28ECh. 1 - Prob. 29ECh. 1 - Prob. 30ECh. 1 - 121 What exponential notation do the following...Ch. 1 -
1.32 Use appropriate metric prefixes to write the...Ch. 1 - Make the following conversions. 72 °F to °C, 216.7...Ch. 1 - a. The temperature on a warm summer day is 87 °F....Ch. 1 - Prob. 35ECh. 1 - A cube of osmium metal 1.500 cm on a side has a...Ch. 1 - To identify a liquid substance, a student...Ch. 1 - a. After the label fell off a bottle containing a...Ch. 1 - Prob. 39ECh. 1 -
1.40 Silicon for computer chips is grown in large...Ch. 1 - Prob. 41ECh. 1 - 1.42 A watt is a measure of power (the rate of...Ch. 1 - Indicate which of the following are exact numbers;...Ch. 1 - Indicate which of the following are exact numbers:...Ch. 1 - 1.45 What is the number of significant figures in...Ch. 1 - Indicate the number of significant figures in each...Ch. 1 - 1.47 Round each of the following numbers to four...Ch. 1 - 1.48
The diameter of Earth at the equator is 7926...Ch. 1 - Carry out the following operations and express the...Ch. 1 - Carry out the following operations and express the...Ch. 1 - You weigh an object on a balance and read the mass...Ch. 1 - You have a graduated cylinder that contains a...Ch. 1 - 153 Using your knowledge of metric units, English...Ch. 1 - 1.54 Using your knowledge of metric units, English...Ch. 1 - A bumblebee flies with a ground speed of 15.2 m/s....Ch. 1 - 1 56
a The speed of light in a vacuum is 2.998 x...Ch. 1 - Perform the following conversions: 5.00 days to s,...Ch. 1 - Carry out the following conversions: 0.105 in. to...Ch. 1 - How many liters of wine can be held in a wine...Ch. 1 - If an electric car is capable of going 225 km on a...Ch. 1 - The density of air at ordinary atmospheric...Ch. 1 - 1.62 The concentration of carbon monoxide in an...Ch. 1 - Prob. 63ECh. 1 - 1.64 A copper refinery produces a copper ingot...Ch. 1 - 165 Classify ea. al the folbwing as a pure...Ch. 1 - 1.66
Which is more likely to eventually be shown...Ch. 1 -
1.67 A sample of ascorbic acid (vitamin C) is...Ch. 1 - Prob. 68AECh. 1 - SO Two students deterrmne the percen.ge of lead in...Ch. 1 - 1.70
Is Om use of significant figures in ea. of...Ch. 1 - What type of quantity (for example, length,...Ch. 1 - 1.72 Give the derived SI units for each of the...Ch. 1 - 1.73 The distance from Earth to the Moon is...Ch. 1 - 1.74 Which of the following would you characterize...Ch. 1 -
1.75 The U.S. quarter has a mass of 5.67 g and is...Ch. 1 -
1.76 In the United States, water used for...Ch. 1 -
1.77 By using estimation techniques, determine...Ch. 1 - Suppose you decide to define your own temperature...Ch. 1 -
1.79 The liquid substances mercury (density =...Ch. 1 -
1.80 Two spheres of equal volume are placed on...Ch. 1 - Water has a density of 0.997 g/cm3 at 25C ; ice...Ch. 1 - A 32.65-g sample of a solid is placed in a flask....Ch. 1 - A thief plans to steal a gold sphere with a radius...Ch. 1 - Automobile batteries contain sulfuric acid, which...Ch. 1 - A 40-lb container of peat moss measures 14 x 20 x...Ch. 1 - A package of aluminum foil contains 50 ft2of foil,...Ch. 1 - Prob. 87AECh. 1 -
1.88 In 2005, J. Robin Warren and Barry J....Ch. 1 -
1 89 A 25 0-cm.long cylindrical glass tube,...Ch. 1 -
1.90 Gold is alloyed (mixed) with other metals to...Ch. 1 -
1.91 Paper chromatography is a simple but...Ch. 1 -
1.92 Judge the following statements as true or...Ch. 1 -
1.93 You are assigned the task of separating a...Ch. 1 - Prob. 94AE
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- Exercise 2.5 Racing cars at the Indianapolis Motor Speedway now routinely travel around the track at an average speed of 225 mi/h. What is this speed in kilometers per hour?arrow_forwarda. When you report your weight to someone, how many significant figures do you typically use? b. What is your weight with two significant figures? c. Indicate your weight and the number of significant figures you would obtain if you weighed yourself on a truck scale that can measure in 50 kg or 100 lb increments.arrow_forwardUsing the definitions 1 in. = 2.54 cm and 1 yd = 36 in. (both exact), obtain the conversion factor for yards to meters. How many meters are there in 3.54 yd?arrow_forward
- Cheap Cars For Sale.. 2C3CDXC O/10 SKILL L To be Cane sugar is a white, odorless, crystalline powder with a sweet taste with the formula C12H2201. What is the percent composition of hydrogen in cane sugar? a 4.2% b 6.5% 51.5% 72.4% Check it Improve this question 2 SCRATCHPADarrow_forwardock Learning Goal: The conversion factor between mass and number of moles is called molar mass. By consulting the periodic table, we can determine that the molar mass of NaCl is 23.0 g/mole + 35.5 g/mole = 58.5 g/mole This number tells us that 1 mole of NaCl has a mass of 58.5 g The conversion factors are 58.5 g 1 mole and esc Here is an example of the conversion of 12.0 moles of NaCl to grams using the first conversion factor: 12.0 moles x 1 Q 1 mole 58.5 g F1 A 58.5 g 1 mole 2 JE -702 g F2 W S JUL 27 20 # 3 F3 E D DO $ 4 F4 Part A R What is the mass of 5.60 moles of magnesium chloride, MgCl₂? Express your answer with the appropriate units. ▶ View Avallable Hint(s) mass of MgCl₂ Submit Part B F How many moles of nitrogen, N, are in 71.0 g of nitrous oxide, N₂O? Express your answer with the appropriate units. ►View Available Hint(s) Value % са HA 5 F5 T μA Value 6 G Units MacBook Air F6 DELET FORMARE Y & 7 ? H Units stv F7 U ▶11 8 J ? A FBarrow_forwardNo. of Questions Work Tim Student Information Chem159 - Practice 5 Compounds 20 297:49:47 Liam A Fox (laf251) Practice 6 7 8. 9. 10 11 12 13 14 15 16 17 18 19 20 2 3 4 (Not Answered) 8.38 g of a mixture of NaNO3 and Na,SO4 contains 2.44 g of sodium. What is the percent by mass of NaNO3 in the mixture? 5.13% 61.2% (Correct answer) 27.5% 72.5% 38.8%%arrow_forward
- Incorrect Incorrect Question 14 What is the mass (in grams) of 4.07 x 1022 molecules of glucose (C₂H₁2O? Do not write units into your answer. 5.89 Question 15 The average distance between the earth and the moon is 384,403 km. How many dollar bills are needed to make a stack that spans this distance? Thickness of a dollar bill is 0.0043 inches. 3.52 2.05arrow_forwardEXERCISE Unit Conversion Drag conversion units onto the boxes in the equation to make conversions. Some boxes can be left empty. Click on a unit to remove it from its position. 270 g x 1 cm³ Cu = 9 g Cu 9.5 x 1021 atoms Cu 1 g Cu 1 kg = 1000 g 1 cm³ 1 mL 1 L 1000 cm3 × A piece of copper has a mass of 270 g. How many atoms does the sample contain? In the boxes above, enter the correct setup that would be used to solve this problem. Check (2 of 3)arrow_forwardLiquid hexane (CH₂(CH₂) CH3) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 0.862 g of hexane is mixed with 1.5 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits. Explanation Check 80 F4 S ? 圖 □ 图 olo Ar © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibilityarrow_forward
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