Text prior to questions in "{ }"Another air-purification method for enclosed spaces involves the use of “scrubbers” containing aqueous lithium hydroxide, which react with carbon dioxide to produce lithium carbonate and water.2LiOH(aq) + CO2(g)  Li2CO3(s) + H2O(l)Consider the air supply in a submarine with a total volume of 2.5 × 105 L. The pressure is 0.9970 atm, and the temperature is 25°C. If the pressure in the submarine drops to 0.9891 atm as the result of carbon dioxide being consumed by an aqueous lithium hydroxide scrubber, how many moles of CO2 are consumed?Strategy Use Equation 11.19(b) to determine Δn, the number of moles of CO2 consumed.Setup ΔP = 0.9970 atm − 0.9891 atm = 7.9 × 10−3 atm. According to the problem statement, V = 2.5 × 105 L and T = 298.15 K. For problems in which P is expressed in atmospheres and V in liters, use R = 0.08206 L · atm/K · mol.Solution Think About ItCareful cancellation of units is essential. Note that this amount of CO2 corresponds to 162 moles or 3.9 kg of LiOH. (It’s a good idea to verify this yourself.)]Practice Problem UILD  By how much would the pressure in the submarine drop if 2.55 kg of LiOH were completely consumed by reaction with CO2? (Assume the same starting P, V, and T as in Worked Example 11.15.)

Question
Asked Dec 7, 2019
36 views

Text prior to questions in "{ }"

Another air-purification method for enclosed spaces involves the use of “scrubbers” containing aqueous lithium hydroxide, which react with carbon dioxide to produce lithium carbonate and water.

2LiOH(aq) + CO2(g)  Li2CO3(s) + H2O(l)

Consider the air supply in a submarine with a total volume of 2.5 × 105 L. The pressure is 0.9970 atm, and the temperature is 25°C. If the pressure in the submarine drops to 0.9891 atm as the result of carbon dioxide being consumed by an aqueous lithium hydroxide scrubber, how many moles of CO2 are consumed?

Strategy Use Equation 11.19(b) to determine Δn, the number of moles of CO2 consumed.

Setup ΔP = 0.9970 atm − 0.9891 atm = 7.9 × 10−3 atm. According to the problem statement, V = 2.5 × 105 L and T = 298.15 K. For problems in which P is expressed in atmospheres and V in liters, use R = 0.08206 L · atm/K · mol.

Solution

 
Think About It

Careful cancellation of units is essential. Note that this amount of CO2 corresponds to 162 moles or 3.9 kg of LiOH. (It’s a good idea to verify this yourself.)]

Practice Problem UILD  By how much would the pressure in the submarine drop if 2.55 kg of LiOH were completely consumed by reaction with CO2? (Assume the same starting P, V, and T as in Worked Example 11.15.) 

check_circle

Expert Answer

Step 1

Given chemical reaction:

2LiOH(aq) + CO2(g) → Li2CO3(s) + H2O(l)

Step 2

Calculation for initial number of moles:

help_outline

Image Transcriptionclose

PV = nRT PV RT 0.9970 atm x 2.5 × 105 L 0.08206 L. atm/mol. K x 298 K n = 10,193 moles

fullscreen
Step 3

Calculation for final n...

help_outline

Image Transcriptionclose

PV = nRT PV n RT 0.9891 atm × 2.5 × 105 L n 0.08206 L. atm/mol. K x 298 K n = 10,112 moles

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: The maximamum wavelength for csi-1,2-diphenylethene is at shorter wavelength(280nm) than for trans -...

A: In alkene, the major transition occurs from π to π* orbital. The energy required for this transition...

question_answer

Q: Question number  2 please

A: The balanced chemical equation for combustion of undecane is given by

question_answer

Q: A spacecraft is filled with 0.500 atm of N2 and 0.500 atm of O2. Suppose an object strikes this spac...

A: Under constant conditions of temperature and pressureThe rate of diffusion of gas is given by

question_answer

Q: A common method where one alkyl halide is converted to another alkyl halide is known as Finkelstein ...

A: The given example of Finkelstein reaction is shown below,

question_answer

Q: 2. Consider the following data for a sample of gaseous oxygen (O2) at a pressure of 1 atm: Temperatu...

A: Option (a): The graph of temperature (y-axis) versus volume (x-axis) is plotted as follows,

question_answer

Q: At 20 C, KCl has a solubility of 34 g KCl in 100mL of water. How much KCl can be dissolved in 356 mL...

A: Solubility is defined as the maximum quantity of a solute which can be dissolved at a particular amo...

question_answer

Q: Balance the following reactions and name what type of reaction it is: Zn(s)+HCl (aq)-----ZnCl2(aq)+H...

A: The given reaction is balanced as follows,

question_answer

Q: 3) %23 Combustion of hydrocarbons such as undecane (C,,H) produces carbon dioxide, a "greenhouse gas...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

question_answer

Q: What is the total number of valence electrons in CH2F2? A. 12 B. 16 C. 20 D. 24 E. 30

A: Valence electron is an outer shell electron that is associated with an atom, and that can participat...