What is the mass of 1.0 mole sample of krypton gas?

1 Answer
Truong-Son N.
Aug 4, 2017

Well, you should consult your periodic table for this...

http://ptable.com/

And krypton, #"Kr"#, with atomic number #36#, has a molar mass of #"83.798 g/mol"#.

That is by definition the mass of #"Kr"# gas atoms for every #"1 mol"# of krypton gas atoms. So, you already have your answer.

#cancel"1 mol" xx "83.798 g Kr"/cancel"mol" = color(blue)ul"83.798 g Kr"#

You should get to know your periodic table well enough that you can at least name every non-#f#-block element, and find it on the table during an exam.

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