Chemistry Question: Pressure Change at Different Temperatures

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To determine the pressure change of hydrogen gas in a cylinder when the temperature drops from 25° C to 7° C, the combined gas law can be applied. The known values include initial pressure at 3.67 atm and temperatures of 25° C and 7° C. Users are advised to list all known measurements before and after the temperature change. The discussion emphasizes the importance of identifying relevant gas laws, such as Charles's Law and Boyle's Law, to solve the problem effectively. Proper application of these principles will yield the new pressure in the showroom.
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A hydrogen cylinder holds gas at 3.67 atm in a laboratory where the temperature is 25° C. To what will the pressure change when the cylinder is placed in a showroom where the temperature drops to 7° C?

I am having trouble calculating this question. Unsure what equation I need to use. Can anyone help?
 
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What gas laws do you know?

You should use post template, now I have to ask questions that you should answer in your first post.
 
I know Charles law, Boyle's Law, the combined gas law and the ideal gas law PV=nRT
 
Begin by listing all of your known values. Just a straight forward before and after listfor each type of measurment (volumes, mass, pressure, temperatures, etc etc) that is given.
Then take a look at those formulas and see which equations utilize those types of values.
 

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