
Concept explainers
(a)
Interpretation:
The density of air at STP having “effective” molar mass of
Concept Introduction:
The
The ideal gas equation resultant of all the ideal gas law’s is shown below.
Effective molar mass means the average molar mass of all the gases present in the air.

Answer to Problem 17E
The density of air at STP having “effective” molar mass of
Explanation of Solution
The ideal gas equation is shown below.
Where,
•
•
•
•
•
Density of any substance is defined as the mass per unit volume. That is, mass of the substance divided by the volume that mass is occupying.
Conversion of ideal gas equation in terms of density of gas is shown below.
Divide the equation (1) by
The number of moles of gas is related to its molar mass by the formula shown below.
Where,
•
•
Substitute the value of
Using equation (2) and simplify.
The formula of density of gas in terms of molar mass, temperature, and pressure is given below.
Under STP conditions temperature is
The molar mass of gas is provided as
Substitute the values of P, R, T and MM in the equation (3).
The density of gas at STP having molar mass of
The density of air at STP having “effective” molar mass of
(b)
Interpretation:
The density of air at temperature of
Concept Introduction:
The ideal
The ideal gas equation resultant of all the ideal gas law’s is shown below.
Effective molar mass means the average molar mass of all the gases present in the air.

Answer to Problem 17E
The density of air at temperature of
Explanation of Solution
The ideal gas equation is shown below.
Where,
•
•
•
•
•
Density of any substance is defined as the mass per unit volume. That is, mass of the substance divided by the volume that mass is occupying.
Conversion of ideal gas equation in terms of density of gas is shown below.
Divide the equation (1) by
The number of moles of gas is related to its molar mass by the formula shown below.
Where,
•
•
Substitute the value of
Using equation (2) and simplify.
The formula of density of gas in terms of molar mass, temperature, and pressure is given below.
Molar mass of oxygen gas is
The temperature of air is
The conversion of temperature in degree celsius to kelvin units is shown below.
Where,
•
•
Temperature of air in degree Celsius units is
Substitute the value
The conversion of pressure in torr to atm is shown below.
The pressure of
Substitute the values of P, R, T and MM in the equation (3).
The density of air at temperature of
The density of air at temperature of
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Chapter 14 Solutions
Introductory Chemistry: An Active Learning Approach
- Draw the major product of this reaction. Ignore inorganic byproducts. ○ O 1. H₂O, pyridine 2. neutralizing work-up a N W X 人 Parrow_forward✓ Check the box under each molecule that has a total of five ẞ hydrogens. If none of the molecules fit this description, check the box underneath the table. tab OH CI 0 Br xx Br None of these molecules have a total of five ẞ hydrogens. esc Explanation Check caps lock shift 1 fn control 02 F2 W Q A N #3 S 80 F3 E $ t 01 205 % 5 F5 & 7 © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility FT * 8 R T Y U כ F6 9 FIG F11 F D G H J K L C X V B < N M H option command P H + F12 commandarrow_forwardDraw the major product of this reaction. Ignore inorganic byproducts and the carboxylic acid side product. O 1. CHзMgBr (excess) 2. H₂O ✓ W X 人arrow_forward
- If cyclopentyl acetaldehyde reacts with NaOH, state the product (formula).arrow_forwardDraw the major product of this reaction. Ignore inorganic byproducts. N S S HgCl2, H2SO4 く 8 W X Parrow_forwardtab esc く Drawing the After running various experiments, you determine that the mechanism for the following reaction occurs in a step-wise fashion. Br + OH + Using this information, draw the correct mechanism in the space below. 1 Explanation Check F2 F1 @2 Q W A os lock control option T S # 3 80 F3 Br $ 4 0105 % OH2 + Br Add/Remove step X C F5 F6 6 R E T Y 29 & 7 F D G H Click and drag to start drawing a structure. © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Ce A F7 DII F8 C Ո 8 * 9 4 F10 F C J K L C V Z X B N M H command P ge Coarrow_forward
- Indicate compound A that must react with ethylbenzene to obtain 4-ethylbenzene-1-sulfonic acid. 3-bromo-4-ethylbenzene-1-sulfonic acid.arrow_forwardPart 1 of 2 Draw the structure of A, the minor E1 product of the reaction. esc I Skip Part Check H₂O, D 2 A + Click and drag to start drawing a structure. -0- F1 F2 1 2 # 3 Q A 80 F3 W E S D F4 $ 4 % 5 F5 ㅇ F6 R T Y F G X 5 & 7 + Save 2025 McGraw Hill LLC. All Rights Reserved. DII F7 F8 H * C 80 J Z X C V B N 4 F9 6arrow_forwardFile Preview The following is a total synthesis of the pheromone of the western pine beetle. Such syntheses are interesting both because of the organic chemistry, and because of the possibility of using species specific insecticides, rather than broad band insecticides. Provide the reagents for each step. There is some chemistry from our most recent chapter in this synthesis, but other steps are review from earlier chapters. (8 points) COOEt COOEt A C COOEt COOEt COOH B OH OTS CN D E See the last homework set F for assistance on this one. H+, H₂O G OH OH The last step is just nucleophilic addition reactions, taking the ketone to an acetal, intramolecularly. But it is hard to visualize the three dimensional shape as it occurs. Frontalin, pheromone of the western pine beetlearrow_forward
- For the reaction below: 1. Draw all reasonable elimination products to the right of the arrow. 2. In the box below the reaction, redraw any product you expect to be a major product. C Major Product: Check + ◎ + X ง © Cl I F2 80 F3 I σ F4 I F5 NaOH Click and drawing F6 A 2025 McGraw Hill LLC. All Rights E F7 F8 $ # % & 2 3 4 5 6 7 8 Q W E R T Y U A S D F G H Jarrow_forwardCan I please get help with this graph. If you can show exactly where it needs to pass through.arrow_forwardN Draw the major product of this reaction. Ignore inorganic byproducts. D 1. H₂O, pyridine 2. neutralizing work-up V P W X DE CO e C Larrow_forward
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