Basic Chemistry - With Access
5th Edition
ISBN: 9780134465692
Author: Timberlake
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 9.4, Problem 9.20QAP
A clock maker has 15 clock faces. Each clock requires one face and two hands.
- If the clock maker has 42 hands, how many clocks can be produced?
- If the clock maker has only eight hands, how many clocks can be produced?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A tricycle factory uses the following items to produce one tricycle: 3 tires, 1 frame, and 2 pedals.
If the factory has available 270 tires, 90 frames, and 170 pedals, which item would limit the number of complete tricycles that can be assembled?
Gaseous ammonia (NH3) decomposes into its elements, nitrogen gas and hydrogen gas. If 13.7 grams of ammonia are allowed to decompose and 7.14 grams of nitrogen are collected, what is the percent yield of nitrogen gas? Express your answer as a percentage with two decimal places.
A chemistry student is performing this reaction in a lab, in which magnesium is burned and combines with oxygen from the air to produce magnesium oxide.
The student burns 2.92 g of Mg with oxygen from the air. The student incorrectly calculated that the mass of magnesium oxide produced was 2.42 g. The work is below:
Chapter 9 Solutions
Basic Chemistry - With Access
Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.2 - 9.3 Write all of the mole-mole factors for each of...Ch. 9.2 - Prob. 9.4QAPCh. 9.2 - Prob. 9.5QAPCh. 9.2 - Prob. 9.6QAPCh. 9.2 - Prob. 9.7QAPCh. 9.2 - Ammonia is produced by the reaction of nitrogen...Ch. 9.2 - Prob. 9.9QAPCh. 9.2 - Prob. 9.10QAP
Ch. 9.3 - Sodium reacts with oxygen to produce sodium oxide....Ch. 9.3 - Nitrogen gas reacts with hydrogen gas to produce...Ch. 9.3 - Prob. 9.13QAPCh. 9.3 - lron (III) oxide reacts with carbon to give iron...Ch. 9.3 - Nitrogen dioxide and water react to produce nitric...Ch. 9.3 - Calcium cyanamide, CaCN2 , reacts with water to...Ch. 9.3 - When solid lead(II) sulfide reacts with oxygen...Ch. 9.3 - When the gases dihydrogen sulfide and oxygen...Ch. 9.4 - Prob. 9.19QAPCh. 9.4 - A clock maker has 15 clock faces. Each clock...Ch. 9.4 - Prob. 9.21QAPCh. 9.4 - Prob. 9.22QAPCh. 9.4 - 9.23 For each of the following reactions, 20.0 g...Ch. 9.4 - For each of the following reactions. 20.0 g of...Ch. 9.4 - Prob. 9.25QAPCh. 9.4 - Prob. 9.26QAPCh. 9.5 - 9.27 Carbon disulfide is produced by the reaction...Ch. 9.5 - Prob. 9.28QAPCh. 9.5 - Prob. 9.29QAPCh. 9.5 - Prob. 9.30QAPCh. 9.5 - Prob. 9.31QAPCh. 9.5 - Prob. 9.32QAPCh. 9.6 - In an exothermic reaction, is the energy of the...Ch. 9.6 - Prob. 9.34QAPCh. 9.6 - Prob. 9.35QAPCh. 9.6 - Classify each of the following as exothermic or...Ch. 9.6 - Prob. 9.37QAPCh. 9.6 - Prob. 9.38QAPCh. 9.6 - Prob. 9.39QAPCh. 9.6 - Prob. 9.40QAPCh. 9.6 - Prob. 9.41QAPCh. 9.6 - Calculate the enthalpy change for the reaction...Ch. 9.6 - Prob. 9.43QAPCh. 9.6 - Prob. 9.44QAPCh. 9 - Prob. 9.45FUCh. 9 - Prob. 9.46FUCh. 9 - Prob. 9.47UTCCh. 9 - Prob. 9.48UTCCh. 9 - Prob. 9.49UTCCh. 9 - Prob. 9.50UTCCh. 9 - Prob. 9.51UTCCh. 9 - If green spheres represent chlorine atoms and red...Ch. 9 - Prob. 9.53UTCCh. 9 - Prob. 9.54UTCCh. 9 - When ammonia NH3 reacts with fluorine F2 , the...Ch. 9 - Gasohol is a fuel that contains ethanol C2H6O that...Ch. 9 - When hydrogen peroxide H2O2 is used in rocket...Ch. 9 - Propane gas, C3H8 , reacts with oxygen to produce...Ch. 9 - When 12.8 g of Na and 10.2 g of Cl2 react, what is...Ch. 9 - If 35.8 g of CH4 and 75.5 g of S react, how many...Ch. 9 - Pentane gas, C5H12 , reacts with oxygen to produce...Ch. 9 - When nitrogen dioxide NO2 from car exhaust...Ch. 9 - The gaseous hydrocarbon acetylene, C2H2 , used in...Ch. 9 - The equation for the decomposition of potassium...Ch. 9 - When 28.0 g of acetylene reacts with hydrogen....Ch. 9 - When 50.0 g of iron(III) oxide reacts with carbon...Ch. 9 - Nitrogen and hydrogen combine to form ammonia....Ch. 9 - Prob. 9.68AQAPCh. 9 - The equation for the reaction of nitrogen and...Ch. 9 - The equation for the reaction of iron and oxygen...Ch. 9 - Each of the following is a reaction that occurs in...Ch. 9 - Each of the following is a reaction that occurs in...Ch. 9 - Prob. 9.73CQCh. 9 - Prob. 9.74CQCh. 9 - Prob. 9.75CQCh. 9 - Prob. 9.76CQCh. 9 - Prob. 9.77CQCh. 9 - Prob. 9.78CQCh. 9 - Prob. 9.79CQCh. 9 - Prob. 9.80CQCh. 9 - Prob. 9.81CQCh. 9 - Prob. 9.82CQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- The element magnesium reacts with the element oxygen to form a white solid compound, magnesium oxide. When a sample of magnesium that weighs 24.30 g reacts with oxygen, it is found that the magnesium oxide produced weighs exactly 40.30 g. (a) Calculate the mass of oxygen in the magnesium oxide. (b) Calculate the mass of magnesium oxide that could be produced from 40.0 g magnesium.arrow_forwardhat do the coefficients of a balanced chemical equation tell us about the proportions in which atoms and molecules react on an individual (microscopic) basis?arrow_forwardPlatinum is a precious metal that is used as a catalyst for many important industrial reactions. Platinum can be purified by reacting platinum(IV) bromide solution with aluminium metal. To test this purification process, a student reacted 15.0 kg of aluminium metal with excess platinum(IV) bromide solution. After the reaction was complete, the student had extracted 75.4 kg of platinum metal. From this data, calculate the percent error of this experiment.Hint: Write a balanced chemical reaction equation and calculate the theoretical yield of platinum first.Record only your final answer with the correct number of significant digits and the proper units.arrow_forward
- Which substance showed no chemical change? a. hydrogen b. sodium c. carbon d. argon Substance Density Phase at room temperature Reaction with water Reaction to flame a.-Hydrogen Gas .00009 g/ml Gas None Burnsexplosively b.-Sodium .97 g/ml Solid Violent bubbling reaction Burns explosively c.-Carbon 2.2 g/ml Solid None Burns slowly d.-Argon .002 g/ml Gas None Nonearrow_forwardA sample of 7.25 g of liquid 1-propanol, CzHgO, is combusted with 39.3 g of oxygen gas. Carbon dioxide and water are = the products.arrow_forwardIt requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make 150 cookies?arrow_forward
- Given the following values, determine the percentage of copper recovered. Show all work. Mass of weigh boat 0.214 g Mass of weigh boat + copper wire 0.501 g Mass of copper wire Mass of weigh boat (different from above) 0.204 g Mass of weigh boat + copper powder 0.418 g Mass of copper powder Percent of copper recoveredarrow_forwardThe physical basis for life is the carbon atom. This atom a. is more abundant than silicon. b. is capable of forming long, complex, stable chains that extract, store, and use energy. c. can replicate itself in a variety of environments. d. releases energy when it bonds with other elements, thus providing the necessary requirements to sustain the organism. e. does all of the above.arrow_forwardChemistry The combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium sulfate solution is 258.2 g. What is the mass of the stoppered flask and all its contents after the solutions have mixed?arrow_forward
- Butane (C4H10) plus Oxygen yields carbon dioxide plus water. b. Balance the chemical equation. 2C4H10(g) + 13O2(g)→ 8CO2(g) + 10 H2O(g) c. What type of chemical reaction is it? d. Is this a physical or a chemical reaction? Please justify your answer by providing evidence from the chemical equation.arrow_forwardA physical property that can be described numerically as the grams of a substance that will dissolve in 100 g of water or other solvent.arrow_forwardUnder certain conditions, the substance water can be broken down to form hydrogen and oxygen.If 23.7 grams of water react to form 2.7 grams of hydrogen, how many grams of oxygen must simultaneously be formed?grams oxygenarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY