The Foundations of Chemistry

The mass of 0.00392 mol of gas is 0.345 g, so the mass of one mole is 88.0 g/mol You should now work Exercises 51 and 54. Let’ ...

DALTON’S LAW OF PARTIAL PRESSURES Many gas samples, including our atmosphere, are mixtures that consist of different kinds of ga ...

Plan (a) We are given the number of moles of each component. The ideal gas law is then used to calculate the total pressure from ...

XA , XB , and so on For a gaseous mixture, we can relate the mole fraction of each component to its partial pressure as follow ...

Using the partial and total pressures calculated in Example 12-15, XCH 4 0.222 XH 2 0.334 XN 2 0.445 You should now wor ...

Solution (a) For O 2 , P 1 V 1 P 2 V 2 or P2,O 2  P V 1 V 2 ^1 15.0 atm For N 2 , P 1 V 1 P 2 V 2 or P2,N 2  P V 1 V 2 ...

and vapor are present. Table 12-4 displays the vapor pressure of water near room temper- ature. The relevant point here is that ...

MASS–VOLUME RELATIONSHIPS IN REACTIONS INVOLVING GASES Many chemical reactions produce gases. For instance, the combustion of hy ...

Plan (a) The number of moles of O 2 produced can be calculated from the ideal gas equation. (b) Then we use the balanced chemica ...

1.One volume of nitrogen can react with three volumes of hydrogen to form two volumes of ammonia N 2 (g)  3H 2 (g) 88n2NH 3 (g) ...

The average kinetic energy of gaseous molecules is directly proportional to the absolute temperature of the sample. The average ...

Boyle’s Law The pressure exerted by a gas on the walls of its container is caused by gas molecules striking the walls. Clearly, ...

Charles’s Law Recall that average kinetic energy is directly proportional to the absolute temperature. Doubling the absolutetemp ...

impulse exerted by each collision and (2) the rate of collisions (number of collisions in a given time interval). P(impulse per ...

This equation can also be written as ^13 NAv(2^12 mu^2 )RT From physics we know that the kinetic energyof a particle of ...

Solution urms  urms 3 .6 2  10 ^6 m^2 /s^2  1.90 103 m/s (about 4250 mph) You should now work Exercise 86. ...

REAL GASES: DEVIATIONS FROM IDEALITY Until now our discussions have dealt with idealbehavior of gases. By this we mean that the ...

1.According to the kinetic–molecular theory, the molecules are so small, relative to the total volume of the gas, that each mole ...

PmeasuredPideally exerted
or Pideally exertedPmeasured In this correction term, large values of aindicate strong attractive ...

Plan (a) Ideal gases obey the ideal gas equation. We can solve this equation for P. (b) To describe methane as a nonideal gas, w ...