Chapter 2: Q13-124CP (page 40)

Air in a smoky bar contains $4.0 \times 10^{- 6} m o l / L$ of CO. What mass of CO is inhaled by a bartender who respires at a rate of 11 L/min during an 8.0-h shift?

Short Answer

Expert verified

Mass of CO inhaled by a bartender is 0.59g.

Step by step solution

Molarity

Molarity is defined as number of moles per litre solution.

molarity =no. of moles of solute

volume of solvent $m o l a r i t y = \frac{(n o . o f m o l e s o f s o l u t e)}{(v o l u m e o f s o l v e n t)}$

Volume of air $= 11 L / m i n \times 8 h = 11 L / m i n \times 8 \times 60 m i n = 5280 L$

Hence, the number of moles CO of can be calculated as follow;

$n u m b e r o f m o l e s o f C O = m o l a r i t y \times v o l u m e o f a i r$

Molarity of CO is $4.0 \times 10^{- 6} m o l / L$ and volume of air is 5280L.

$n u m b e r o f m o l e s o f C O = 4.0 \times 10^{- 6} m o l / L \times 5280 L = 0.02112 m o l e s$

Mass of CO

Mass of CO can be calculated by multiplying number of moles of CO and molecular mass of CO.

Molecular mass of $C O = 12 + 16 = 28$

$m a s s o f C O = n o . o f m o l e s o f C O \times m o l e c u l a r m a s s o f C O = 0.02112 m o l \times 28 g / m o l = 0.59 g$

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Air in a smoky bar contains $4.0 \times 10^{- 6} m o l / L$ of CO. What mass of CO is inhaled by a bartender who respires at a rate of 11 L/min during an 8.0-h shift?

Short Answer

Step by step solution

Molarity

Mass of CO

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Air in a smoky bar contains4.0×10-6mol/Lof CO. What mass of CO is inhaled by a bartender who respires at a rate of 11 L/min during an 8.0-h shift?

Short Answer

Step by step solution

Molarity

Mass of CO

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemistry Branches

Physical Chemistry

Kinetics

Chemical Reactions

Inorganic Chemistry

Organic Chemistry

Study anywhere. Anytime. Across all devices.

Air in a smoky bar contains $4.0 \times 10^{- 6} m o l / L$ of CO. What mass of CO is inhaled by a bartender who respires at a rate of 11 L/min during an 8.0-h shift?