Answered: X gas concentration is given in a…

X gas concentration is given in a workplace atmosphere below. What is the Time weighted average (TWA) for 8 hours? For 2 hours 100ppm For 5 hours 200ppm For 1 hour 50

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter9: Energy For Today

Section: Chapter Questions

Problem 9E

See similar textbooks

Related questions

Q: Explain one effective or ineffective aspect of this graph.

A: A problem based on graph, which is to be accomplished.

Q: The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10 and a professor made 1825 mL of a CaSO4(aa)…

A: The question is based on the concept of Le-chatlier principle. It States that when a system at…

Q: You graph the calibration curve of a solution of an unknown metal (we will call it M+) at 400 nm.…

A: Given, Calibration curve of a solution of unknown metal.

Q: Describe the sources you should focus on when doing research to support your position.

Q: Give me short simple answer Would you expect to find more gunshot residue around an entrance or…

A: The objective of the question is to understand where we would expect to find more gunshot residue -…

Q: Identifying organic functional groups compound - CH₁₂ - · CH3 N CH3 CH2 O C C- - CH3 family amine -…

A: Thank you.

Q: Case #5 Çase #6 Jeepers! Someone snuck into the Movie Madness studio and Someone stole the net from…

Q: Please answer the following question:

A: 1. Yes, this behavior is an example of nonhuman primate culture. 2. Why? Tool Use and Modification:…

Q: Predict the major product of the following reaction. 0 ل مرده عليم B. HO OH OH

A: The given reaction is shown below.We have to predict the major product of the above mentioned…

Q: QUESTION 10 Name the following compounds: H₂O KF Na2CO3 H₂SO4 PH3 SF6 503 Ca3(PO4)2 CO Cu(NO3)2 N₂05…

A: Different type of inorganic compounds have different names depending on the type of atoms , cations…

Q: Case #1 Case #2 Jinkies! The Moaning Lisa has been stolen from the Haunted Museum! The crime scene…

Concept explainers

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.

Question

You just have to post the answer, I'll do the explanation myself.

X gas concentration is given in a workplace atmosphere below. What is the Time weighted average (TWA)
for 8 hours?
For 2 hours 100ppm
For 5 hours 200ppm
For 1 hour 50
O a. 345.62
O b. 25.26
O c. 116.7
O d. 156.25
O e. 112.21

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

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

As weather balloons rise from the earths surface, the pressure of the atmosphere becomes less, tending to cause the volume of the balloons to expand. However, the temperatura is much lower in the upper atmosphere than at sea level. Would this temperatura effect tend to make such a balloon expand or contract? Weather balloons do, in fact, expand as they rise. What does this tell you?
Amoxicillin is an antibiotic packaged as a powder. When it is used to treat babies and small animals, the pharmacist or veterinarian must suspend it in water, so that it can be administered orally with a medicine dropper. The label says to dispose of unused suspension after 14 days. It also points out that refrigeration is required. In the context of this chapter, what is implied in the latter two statements?
The second law of thermodynamics has been called the arrow of time. Explain why this is so.
A reaction of the form aAProducts gives a plot of ln[A] versus time (in seconds), which is a straight line with a slope of 7.35 X 103. Assuming [A]0 = 0.0100 M, calculate the time (in seconds) required for the reaction to reach 22.9% completion.
Propane, C3H8, is a hydrocarbon that is commonly used as a fuel. (a) Write a balanced equation for the complete combustion of propane gas. (b) Calculate the volume of air at 25 C and 1.00 atmosphere that is needed to completely combust 25.0 grams of propane. Assume that air is 21.0 percent O2 by volume. (Hint: we will see how to do this calculation in a later chapter on gasesfor now use the information that 1.00 L of air at 25 C and 1.00 atm contains 0.275 g of 2 per liter.) (c) The heat of combustion of propane is 2,219.2 kJ/mol. Calculate the heat of formation, Hf of propane given that Hf of H2O(l)=285.8 kJ/mol and Hf of CO2(g)=393.5 kJ/mol. (d) Assuming that all of the heat released in burning 25.0 grams of propane is transferred to 4.00 kilograms of water, calculate the increase in temperature of the water.
Substances burn more rapidly in pure oxygen than in air. Explain why.
Iodomethane (CH3I) is a commonly used reagent in organic chemistry. When used properly, this reagent allows chemists to introduce methyl groups in many different useful applications. The chemical does pose a risk as a carcinogen, possibly owing to iodomethanes ability to react with portions of the DNA strand (if they were to come in contact). Consider the following hypothetical initial rates data: [DNA]0 ( mol/L) [CH3I]0 ( mol/L) Initial Rate (mol/Ls) 0.100 0.100 3.20 104 0.100 0.200 6.40 104 0.200 0.200 1.28 103 Which of the following could be a possible mechanism to explain the initial rate data? MechanismIDNA+CH3IDNACH3++IMechanismIICH3ICH3++ISlowDNA+CH3+DNACH3+Fast
Consider the reaction between 50.0 mL liquid methanol, CH3OH (density = 0.850 g/mL), and 22.8 L O2 at 27C and a pressure of 2.00 atm. The products of the reaction are CO2(g) and H2O(g). Calculate the number of moles of H2O formed if the reaction goes to completion.
#15
4PH3(g) → P4(g) + 6H₂(g) The average rate of consumption of PH3 is 0.048 M s¹¹. Based on this average rate, what amount of P4 would be collected in 4.00 minutes in a 15.0 L container? A. 173 moles B. 43.2 moles C. 86.4 moles D. 692 moles E. 346 moles
The major product/s that form/s during the nitration of benzenesulfonic acid is? Choose the correct answer from provided options /i OA. H®OS O2N O B. O2N. SO3H
A reaction at – 13.0 °C evolves 852. mmol of carbon monoxide gas. Calculate the volume of carbon monoxide gas that is collected. You can assume the pressure in the room is exactly 1 atm. Round your answer to 3 significant digits. volume: L x10