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Chapter 8: Q. 8.20 (page 267)

A sample of Ne gas has a pressure of 654 mmHg with an unknown volume. The gas has a pressure of 345 mmHg when the volume is 495 mL, with no change in temperature or amount of gas. What was the initial volume, in milliliters, of the gas?

Short Answer

Expert verified

The initial volume of the gas was261ml.

Step by step solution

01

Given information

We need to find the initial volume of the gas in millilitres.

02

Explanaiton

As the temperature is not changing so we can apply Boyle's law

P1V1=P2V2

Now,

localid="1653571918071" P1=654mmHg

localid="1653571910388" P2=345mmHg

localid="1653571945933" V2=495ml

Substituting the given values we get,

localid="1653571937937" role="math" V1=345mmHg脳495ml654mmHg=261ml

So the initial value of gas was261ml

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Most popular questions from this chapter

At a restaurant, a customer chokes on a piece of food. You put your arms around the person's waist and use your fists to push up on the person's abdomen, an action called the Heimlich maneuver.(8.2)

a. How would this action change the volume of the chest and lungs?

b. Why does it cause the person to expel the food item from the airway?

The air in a 5.00-L tank has a pressure of 1.20 atm. What is the final pressure, in atmospheres, when the air is placed in tanks that have the following volumes, if there is no change in temperature and amount of gas?

a. 1.00 L

b. 2500. mL

c. 750. mL

d. 8.00 L

A mixture of nitrogen N2and helium has a volume of role="math" localid="1652611326264" 250mLat 30掳Cand a total pressure of 745mmHg.

a. If the partial pressure of helium is 32mmHg, what is the partial pressure of the nitrogen?

b. What is the final volume, in litres, of the nitrogen at STP?

Two flasks of equal volume and at the same temperature contain different gases. One flask contains 5.0gofH2. Is each of the following statements true or false? Explain. 8.1

a. Both flasks contain the same number of molecules.

b. The pressure in the the flasks are the same.

Indicate whether the final volume of gas in each of the following is the same, larger, or smaller than the initial volume, if pressure and amount of gas do not change:
a. A volume of 505mLof air on a cold winter day at 15掳C is breathed into the lungs, where body temperature is 37掳C
b. The heater used to heat the air in a hot-air balloon is turned off.
c. A balloon filled with helium at the amusement park is left in a car on a hot day.
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