3. How many moles are found in 11.2 L of H2O vapor (steam) at STP?

Step by step please help

0.5mole

Explanation:

Given:

Volume of water vapor at STP = 11.2L

Unknown:

Number of moles  = ?

Solution:

To solve this problem, we use the expression below;

   A mole of a gas occupies a volume of 22.4L at STP;

   Number of moles  =  

So;

  Number of moles  =   = 0.5mole

The number of moles of steam is 0.5mole

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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