(Q1) Which of the following statements is not correct? A) Lab instructors should be notified if you break a thermometer that contains mercury. B) All chemicals in the lab must be treated as hazardous, even chemicals such as NaCl (table salt). C) Fire alarms, fire extinguishers, showers, and emergency eye washes, are examples of safety equipment in the lab. D) Pipettes and droppers shouldn't be inserted into any reagent bottle, even if they are clean. E) If you break a thermometer that contains mercury you can clean it up with a paper towel.

(Q1) Which of the following statements is not correct? A) Lab instructors should be notified if you break a thermometer that contains mercury. B) All chemicals in the lab must be treated as hazardous, even chemicals such as NaCl (table salt). C) Fire alarms, fire extinguishers, showers, and emergency eye washes, are examples of safety equipment in the lab. D) Pipettes and droppers shouldn't be inserted into any reagent bottle, even if they are clean. E) If you break a thermometer that contains mercury you can clean it up with a paper towel.

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 43GQ: Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water...

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Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water are immiscible liquids; that is, they do not dissolve in one another. You place 10 mL of each in a graduated cylinder, along with pieces of high-density polyethylene (HDPE, density = 0.97 g/cm3), polyvinyl chloride(PVC, density = 1.36 g/cm3), and Teflon (density = 2.3 g/cm3). None of these common plastics dissolves in these liquids. Describe what you expect to see.
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In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average concentration of 1.90 ppm. (1 ppm stands for 1 part per million which means in one million volumes of air—choose whatever volume unit you like—there would be one volume of carbon monoxide.) An average human takes inhales 0.50 L per breath and takes 20 breaths per minute. Carbon monoxide in the atmosphere has a density of 1.2 grams per liter. How many liters of air does a person breathe in Utah County in 8 hours? How many liters of carbon monoxide will a person breathe in Utah County in 8 hours? How many milligrams of carbon monoxide would a person in Utah County inhale in an 8 hours?
In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average concentration of 1.90 ppm. (1 ppm stands for 1 part per million which means in one million volumes of air—choose whatever volume unit you like—there would be one volume of carbon monoxide.) An average human takes inhales 0.50 L per breath and takes 20 breaths per minute. Carbon monoxide in the atmosphere has a density of 1.2 grams per liter. 3. How many milligrams of carbon monoxide would a person in Utah County inhale in an 8 hours?
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After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and processing her data, Sally found that her drinking strength Kool-Aid sample had an FD&C Red 40 concentration of 1.086 x 10–5 M. If 0.133 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her Kool-aid powder?