CHEMISTRY 1111 LAB MANUAL >C<
1st Edition
ISBN: 9781307092097
Author: Chang
Publisher: MCG/CREATE
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Textbook Question
Chapter 1, Problem 1.4QP
Classify each of the following statements as a hypothesis, a law, or a theory. (a) Beethoven’s contribution to music would have been much greater if he had married. (b) An autumn leaf gravitates toward the ground because there is an attractive force between the leaf and Earth. (c) All matter is composed of very small particles called atoms.
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Chapter 1 Solutions
CHEMISTRY 1111 LAB MANUAL >C<
Ch. 1.3 - Which of the following statements is true? (a) A...Ch. 1.4 - Which of the following diagrams represent elements...Ch. 1.5 - An ice cube is placed in a closed container. On...Ch. 1.6 - The diagram in (a) shows a compound made up of...Ch. 1.7 - A piece of platinum metal with a density of 21.5...Ch. 1.7 - The density of sulfuric acid in a certain car...Ch. 1.7 - Convert (a) 327.5C (the melting point of lead) to...Ch. 1.7 - The density of copper is 8.94 g/cm3 at 20C and...Ch. 1.8 - Determine the number of significant figures in...Ch. 1.8 - Carry out the following arithmetic operations and...
Ch. 1.8 - Give the length of the pencil with proper...Ch. 1.9 - A roll of aluminum foil has a mass of 1.07 kg....Ch. 1.9 - The volume of a room is 1.08 108 dm3. What is the...Ch. 1.9 - The density of the lightest metal, lithium (Li),...Ch. 1.9 - Review of Concepts
The Food and Drug...Ch. 1.10 - Prob. 9PECh. 1 - Explain what is meant by the scientific method.Ch. 1 - What is the difference between qualitative data...Ch. 1 - Classify the following as qualitative or...Ch. 1 - Classify each of the following statements as a...Ch. 1 - Give an example for each of the following terms:...Ch. 1 - Give an example of a homogeneous mixture and an...Ch. 1 - Using examples, explain the difference between a...Ch. 1 - How does an intensive property differ from an...Ch. 1 - Give an example of an element and a compound. How...Ch. 1 - What is the number of known elements?Ch. 1 - Do the following statements describe chemical or...Ch. 1 - Does each of the following describe a physical...Ch. 1 - Give the names of the elements represented by the...Ch. 1 - Give the chemical symbols for the following...Ch. 1 - Classify each of the following substances as an...Ch. 1 - Classify each of the following as an element, a...Ch. 1 - Name the SI base units that are important in...Ch. 1 - Write the numbers represented by the following...Ch. 1 - What units do chemists normally use for density of...Ch. 1 - Describe the three temperature scales used in the...Ch. 1 - Bromine is a reddish-brown liquid. Calculate its...Ch. 1 - The density of methanol, a colorless organic...Ch. 1 - Convert the following temperatures to degrees...Ch. 1 - Prob. 1.24QPCh. 1 - Convert the following temperatures to kelvin: (a)...Ch. 1 - Convert the following temperatures to degrees...Ch. 1 - What is the advantage of using scientific notation...Ch. 1 - Define significant figure. Discuss the importance...Ch. 1 - Express the following numbers in scientific...Ch. 1 - Prob. 1.30QPCh. 1 - Express the answers to the following calculations...Ch. 1 - Express the answers to the following calculations...Ch. 1 - Prob. 1.33QPCh. 1 - How many significant figures are there in each of...Ch. 1 - Carry out the following operations as if they were...Ch. 1 - Carry out the following operations as if they were...Ch. 1 - Three students (A, B, and C) are asked to...Ch. 1 - Three apprentice tailors (X, Y, and Z) are...Ch. 1 - Carry out the following conversions: (a) 22.6 m to...Ch. 1 - Carry out the following conversions: (a) 242 lb to...Ch. 1 - The average speed of helium at 25C is 1255 m/s....Ch. 1 - How many seconds are there in a solar year (365.24...Ch. 1 - Prob. 1.43QPCh. 1 - A jogger runs a mile in 8.92 min. Calculate the...Ch. 1 - A 6.0-ft person weighs 168 lb. Express this...Ch. 1 - The speed limit on parts of the German autobahn...Ch. 1 - Prob. 1.47QPCh. 1 - Prob. 1.48QPCh. 1 - Prob. 1.49QPCh. 1 - Carry out the following conversions: (a) 70 kg,...Ch. 1 - Aluminum is a lightweight metal (density = 2.70...Ch. 1 - Ammonia gas is used as a refrigerant in...Ch. 1 - Prob. 1.53QPCh. 1 - Which of the following statements describe...Ch. 1 - Prob. 1.55QPCh. 1 - In determining the density of a rectangular metal...Ch. 1 - Calculate the mass of each of the following: (a) a...Ch. 1 - A cylindrical glass bottle 21.5 cm in length is...Ch. 1 - The following procedure was used to determine the...Ch. 1 - Prob. 1.60QPCh. 1 - A piece of silver (Ag) metal weighing 194.3 g is...Ch. 1 - Prob. 1.62QPCh. 1 - A lead sphere of diameter 48.6 cm has a mass of...Ch. 1 - Lithium is the least dense metal known (density:...Ch. 1 - Prob. 1.65QPCh. 1 - Vanillin (used to flavor vanilla ice cream and...Ch. 1 - At what temperature does the numerical reading on...Ch. 1 - Prob. 1.68QPCh. 1 - A resting adult requires about 240 mL of pure...Ch. 1 - (a) Referring to Problem 1.71, calculate the total...Ch. 1 - Three different 25.0-g samples of solid pellets...Ch. 1 - Prob. 1.72QPCh. 1 - Prob. 1.73QPCh. 1 - The surface area and average depth of the Pacific...Ch. 1 - The unit troy ounce is often used for precious...Ch. 1 - Prob. 1.76QPCh. 1 - Prob. 1.77QPCh. 1 - The natural abundances of elements in the human...Ch. 1 - The mens world record for running a mile outdoors...Ch. 1 - Prob. 1.80QPCh. 1 - Chalcopyrite, the principal ore of copper (Cu),...Ch. 1 - Prob. 1.82QPCh. 1 - Prob. 1.83QPCh. 1 - Measurements show that 1.0 g of iron (Fe) contains...Ch. 1 - The thin outer layer of Earth, called the crust,...Ch. 1 - Prob. 1.86QPCh. 1 - One gallon of gasoline in an automobiles engine...Ch. 1 - A sheet of aluminum (Al) foil has a total area of...Ch. 1 - Prob. 1.89QPCh. 1 - Chlorine is used to disinfect swimming pools. The...Ch. 1 - An aluminum cylinder is 10.0 cm in length and has...Ch. 1 - Prob. 1.92QPCh. 1 - Prob. 1.93QPCh. 1 - Prob. 1.94QPCh. 1 - A human brain weighs about 1 kg and contains about...Ch. 1 - Prob. 1.96QPCh. 1 - A bank teller is asked to assemble one-dollar sets...Ch. 1 - A graduated cylinder is filled to the 40.00-mL...Ch. 1 - Prob. 1.99QPCh. 1 - Prob. 1.100QPCh. 1 - Prob. 1.101QPCh. 1 - Prob. 1.102QPCh. 1 - Tums is a popular remedy for acid indigestion. A...Ch. 1 - A 250-mL glass bottle was filled with 242 mL of...Ch. 1 - What is the mass of one mole of ants? (Useful...Ch. 1 - How much time (in years) does an So-year-old...Ch. 1 - Estimate the daily amount of water (in gallons)...Ch. 1 - Public bowling alleys generally stock bowling...Ch. 1 - Fusing nanofibers with diameters of 100 to 300 nm...Ch. 1 - Prob. 1.110IMECh. 1 - Estimate the total amount of ocean water in...Ch. 1 - Estimate the volume of blood in an adult in...Ch. 1 - Prob. 1.113IMECh. 1 - Estimate the distance (in miles) covered by an NBA...Ch. 1 - In water conservation, chemists spread a thin film...
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- (6 pts - 2 pts each part) Although we focused our discussion on hydrogen light emission, all elements have distinctive emission spectra. Sodium (Na) is famous for its spectrum being dominated by two yellow emission lines at 589.0 and 589.6 nm, respectively. These lines result from electrons relaxing to the 3s subshell. a. What is the photon energy (in J) for one of these emission lines? Show your work. b. To what electronic transition in hydrogen is this photon energy closest to? Justify your answer-you shouldn't need to do numerical calculations. c. Consider the 3s subshell energy for Na - use 0 eV as the reference point for n=∞. What is the energy of the subshell that the electron relaxes from? Choose the same emission line that you did for part (a) and show your work.arrow_forwardNonearrow_forward(9 Pts) In one of the two Rare Earth element rows of the periodic table, identify an exception to the general ionization energy (IE) trend. For the two elements involved, answer the following questions. Be sure to cite sources for all physical data that you use. a. (2 pts) Identify the two elements and write their electronic configurations. b. (2 pts) Based on their configurations, propose a reason for the IE trend exception. c. (5 pts) Calculate effective nuclear charges for the last electron in each element and the Allred-Rochow electronegativity values for the two elements. Can any of these values explain the IE trend exception? Explain how (not) - include a description of how IE relates to electronegativity.arrow_forward
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