Fluorine exerts a pressure of 900. torr. When the pressure is changed to 1.5 atm, its volume is 250. mL. What was the original volume?

Explanation:

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In this case, since this is a problem about the Boyle's law as we are given the initial and final pressure and the final volume, we can write:

Whereas we can solve for the initial volume V1 as shown below:

However, both pressures must be in the same units, therefore, we plug in the values as shown below:

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- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).