A 4.00L flask containing Ne at 25 C and 6.00 atm is joined by a valve to an 8.00 L flask Ar at 25 C and 2.00 atm. The valve is opened and the gases mix. If the temperature is constant, what is the (total) pressure in the connected flasks after mixing?
? atm​

Explanation:

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In this case, since know the volume, temperature and pressure of the initial containers, we can compute the moles of each gas prior to the opening of the valve as shown below:

Next, we add them up to obtain the total moles:

Now, the total volume:

Finally, the total pressure is computed by using the ideal gas equation:

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8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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