General, Organic, and Biological Chemistry: Structures of Life (5th Edition)
5th Edition
ISBN: 9780321967466
Author: Karen C. Timberlake
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 1.2, Problem 1.8QAP
Identify each activity, a to f, as an observation (O), a hypothesis (H), an experiment (E), or a conclusion (C).
Lucia wants to develop a proces for dyeing shirts so that the color will not fade when the shirt is washed. She proceeds with the following activities:
- Lucia notices that the dye in a design fades when the shirt is washed.
- Lucia decides that the dye needs something to help it combine with the fabric.
- She places a spot of dye on each of four shirts and then places each one separetly in water, salt water, vinegar, and baking soda and water.
- After one hour, all the shirts are removed and washed with a detergent.
- Lucia notices that the dye had faded on the shirts in water, salt water, and baking soda, whereas the dye did not fade on the shirt in vinegar.
- Lucia thinks that the vinegat binds with the dye so it does not fade when the shirt is washed.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
When Forrest Gump "just felt like runnin", it is estimated he ran 3.0634 x 10 km. Assuming an average running speed of 6.00 mph and Forrest ran 12 hours a day, how many days was he running? (1milc = 1.60934 km)
A study is being performed to see if there is a correlation between the
concentration of chromium in the blood and a suspected disease. Blood
samples from a group of volunteers with history of the disease are analyzed
and compared with the results from the healthy control subjects. From the
following results (Table 1), determine whether the differences between the two
groups can be ascribed as chance or whether they are real at 95% confident
level.
A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of
dimethyl sulfoxide, ethanolamine, tetrahydrofuran, methyl acetate, and diethylamine.
The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety
Data Sheets (MSDS), the chemist finds the following information:
liquid
density
dimethyl sulfoxide
1.1
mL
1.0
mL
ethanolamine
tetrahydrofuran
0.89
mL
methyl acetate
0.93
mL
diethylamine
0.71
mL
Next, the chemist measures the volume of the unknown liquid as 1655. cm and the mass of the unknown liquid as 1.55 kg.
Calculate the density of the liquid. Round
0g / mL
your answer to 3 significant digits.
O yes
Given the data above, is it possible to
identify the liquid?
O no
O dimethyl sulfoxide
O ethanolamine
O tetrahydrofuran
O methyl acetate
O diethylamine
If it is possible to identify the…
Chapter 1 Solutions
General, Organic, and Biological Chemistry: Structures of Life (5th Edition)
Ch. 1.1 - Write a one-sentence definition for each of the...Ch. 1.1 - Write a one-sentence definition for each of the...Ch. 1.1 - Obtain a bottle of multivitamins and read the list...Ch. 1.1 - Prob. 1.4QAPCh. 1.1 - Read the labels on some items found in your...Ch. 1.1 - Read the labels on products used to wash your...Ch. 1.2 - Prob. 1.7QAPCh. 1.2 - Identify each activity, a to f, as an observation...Ch. 1.2 - Prob. 1.9QAPCh. 1.2 - Identify each of the following as an observation...
Ch. 1.3 - Prob. 1.11QAPCh. 1.3 - Prob. 1.12QAPCh. 1.3 - Prob. 1.13QAPCh. 1.3 - Prob. 1.14QAPCh. 1.4 - What is the place value for the bold digit? 7.3288...Ch. 1.4 - Prob. 1.16QAPCh. 1.4 - Prob. 1.17QAPCh. 1.4 - Prob. 1.18QAPCh. 1.4 - Prob. 1.19QAPCh. 1.4 - Prob. 1.20QAPCh. 1.4 - Prob. 1.21QAPCh. 1.4 - Prob. 1.22QAPCh. 1.4 - Prob. 1.23QAPCh. 1.4 - What is measured on the horizontal axis? What is...Ch. 1.4 - Prob. 1.25QAPCh. 1.4 - Prob. 1.26QAPCh. 1.4 - Prob. 1.27QAPCh. 1.4 - Prob. 1.28QAPCh. 1.4 - Prob. 1.29QAPCh. 1.4 - If the toxic quantity is 1.5 g per 1000 g of body...Ch. 1 - Prob. 1.31UTCCh. 1 - Prob. 1.32UTCCh. 1 - Prob. 1.33UTCCh. 1 - Prob. 1.34UTCCh. 1 - Prob. 1.35UTCCh. 1 - Prob. 1.36UTCCh. 1 - Prob. 1.37UTCCh. 1 - Prob. 1.38UTCCh. 1 - Prob. 1.39AQAPCh. 1 - Prob. 1.40AQAPCh. 1 - Prob. 1.41AQAPCh. 1 - Prob. 1.42AQAPCh. 1 - Prob. 1.43AQAPCh. 1 - Prob. 1.44AQAPCh. 1 - Evaluate each of the following: (1.4) 4x(-8)=...Ch. 1 - Prob. 1.46AQAPCh. 1 - Prob. 1.47AQAPCh. 1 - Prob. 1.48AQAPCh. 1 - Prob. 1.49AQAPCh. 1 - Prob. 1.50AQAPCh. 1 - Prob. 1.51CQCh. 1 - Prob. 1.52CQCh. 1 - Solve each of the following for X: (1.4) 2x + 5 =...Ch. 1 - Solve each of the following for z: (1.4) 3z ( 6)...Ch. 1 - What does the title indicate about the graph?...Ch. 1 - What is measured on the horizontal axis? (1.4)...
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
- 2. A prescription balance has a sensitivity requirement of 0.006 g. Explain how you would weigh 0.012 g of a drug with an error not greater than 5%, using lactose as the diluent.arrow_forwardA chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of carbon tetrachloride, diethylamine, methyl acetate, tetrahydrofuran, and acetone. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information:arrow_forwardA chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of acetone, methyl acetate, diethylamine, carbon tetrachloride, and dimethyl sulfoxide. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: density 0.79 g mL liquid acetone methyl acetate diethylamine carbon tetrachloride dimethyl sulfoxide 0.93 g mL 0.71 g mL 1.6 g mL 1.1 g⋅mL – 1 Calculate the density of the liquid. Be sure your answer has the correct number of significant digits. Given the data above, is it possible to identify the liquid? - 1 Next, the chemist measures the volume of the unknown liquid as 1558. cm` and the mass of the unknown liquid as 1.39 kg. If it is possible to identify the liquid, do so. - 1 1 DOO0 g.mL yes no - 1 acetone methyl…arrow_forward
- You will observe granules of sugar, salt, and pepper under a magnifying glass (if available, if not some Android phones also have a magnifying glass feature, but you need to turn it on for it to work. To turn on the magnifying glass, go to Settings, then Accessibility, then Vision, then Magnification and turn it on. When you need to use the magnifying glass, go to the camera app and tap the screen three times.), and observe the similarities and differences between these common materials. Questions: • Can you see the difference between the sugar and salt granules? • Which of the substances appear to be made of crystals?arrow_forwardYou will observe granules of sugar, salt, and pepper under a magnifying glass (if available, if not some Android phones also have a magnifying glass feature, but you need to turn it on for it to work. To turn on the magnifying glass, go to Settings, then Accessibility, then Vision, then Magnification and turn it on. When you need to use the magnifying glass, go to the camera app and tap the screen three times.), and observe the similarities and differences between these common materials. Guide questions for students: • Can you see the difference between the sugar and salt granules? Can you see the different angles? • Are there angles in the pepper? Does it look crystalline? Questions: 1. Which of the substances appears to be made of crystals? 2. Defend your answer with evidence from your observation. What did you use to help you decide which are crystals, and which are not?arrow_forwardYou work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.arrow_forward
- Q1. In the photo. Q2. A small tumour is growing exponentially with a doubling time of 15 days. If the tumour currently has 1.3 million cells, how quickly is the number of cells increasing.arrow_forwardIn the determination of the concentration of chloride ion in water five experiments were done: 254.3 ppm, 254.7 ppm, 249.9 ppm, 252.5 ppm, and 253.4 ppm. What is the relative average deviation of this experiment? (ppm=mg/Larrow_forwardA chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of diethylamine, chloroform, glycerol, ethanolamine, and carbon tetrachloride. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density diethylamine -3 0.71 g cm -3 1.5 g cm chloroform glycerol -3 1.3 g cm ethanolamine 1.0 g cm -3 1.6 g·cm carbon tetrachloride Next, the chemist measures the volume of the unknown liquid as 0.864 L and the mass of the unknown liquid as 880. g. Calculate the density of the liquid. Be sure - 3 your answer has the correct number of g.cm significant digits. O yes Given the data above, is it possible to identify the liquid? O no O diethylamine chloroform If it is possible to identify the liquid, do so. glycerol…arrow_forward
- A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of glycerol, pentane, acetone, tetrahydrofuran, and dimethyl sulfoxide. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density glycerol 1.3 g•cm pentane - 3 0.63 g·cm 3 0.79 g·cm аcetone tetrahydrofuran 3 0.89 g·cm dimethyl sulfoxide 1.1 g·cm Next, the chemist measures the volume of the unknown liquid as 0.683 L and the mass of the unknown liquid as 752. g. Calculate the density of the liquid. Be sure -3 Ox10 your answer has the correct number of significant digits. 1101 g·cm Given the data above, is it possible to identify the liquid? yes noarrow_forwardA chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of dimethyl sulfoxide, glycerol, chloroform, acetone, and ethanolamine. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density dimethyl sulfoxide 1.1 olo 3 cm Ar glycerol 1.3 3 cm chloroform 1.5 3 cm acetone 0.79 3 cm ethanolamine 1.0 3arrow_forwardA chemical industry discharges a waste contaminated with trichloroethylene (TCE) to the city sewer system. By law, the concentration of TCE must be 1 mg/L or less. To enforce this law, the Department of Environmental Conservation (DEC) conducts random testing. The chief environmental engineer for the chemical company knows that the mean TCE concentration in the waste is 0.064 mg/L, and the standard deviation is 0.022 mg/L. The TCE concentration can be assumed to be a normal random variable. What is the probability that the company will fail a random test by the DEC? [In other words, the probability that a random sample will have TCE > 0.1 mg/L.] Show your work and draw a labeled sketch to show what area of the normal distribution curve you used to solve the problem. What is the probability that the company will fail two consecutive random tests? The tests can be assumed to be independent of each other. Show your work. Determine the concentration of TCE that is exceeded only 10%…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningWorld of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College DivChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Introductory Chemistry: An Active Learning Approa...
Chemistry
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
World of Chemistry
Chemistry
ISBN:9780618562763
Author:Steven S. Zumdahl
Publisher:Houghton Mifflin College Div
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Measurement and Significant Figures; Author: Professor Dave Explains;https://www.youtube.com/watch?v=Gn97hpEkTiM;License: Standard YouTube License, CC-BY
Trigonometry: Radians & Degrees (Section 3.2); Author: Math TV with Professor V;https://www.youtube.com/watch?v=U5a9e1J_V1Y;License: Standard YouTube License, CC-BY