inorgamic chem problems - how to calculate while testing?

[rals]

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hey guys, how are we supposed to caculate things like pv=nrt and keq's etc. or when you have to use constants like h or R in calculations on the exam? by hand? wouldn't that take a few minutes? or do they simply make the questions easier so you can do the math quickly?

 

[Streetwolf]

Sometimes simple estimation but usually easy numbers.

 

[rals]

thanks, streetwolf. 🙂

 

[nate28]

I remember seeing kinetics questions that had some odd numbers, but they were in whole number ratios. I don't remember pv=nrt, I'm sure it will be there in some form. Maybe something like, "What's the new pressure of a container if the volume is halved and the number of mols of gas is doubled?" Good luck!!