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Will we be given the molar mass of elements on the exam? or will we have to memorize the molar masses of the elements? I noticed that in the module assessments we were given the molar mass for some of the elements, but not all.
Even though we'll be given molar masses from the periodic table, it doesn't hurt to memorize some of the more common elements! After doing a whole bunch of practice problems, molar masses of common elements used will just be ingrained in your memory. Oxygen, Carbon, Hydrogen, and Nitrogen are nice ones to remember, so you won't have to go back and forth between the periodic table and your test.
You'll also find that after doing chemistry for a while you'll just naturally memorize the molar masses of elements and compounds. After doing IB chemistry I had the molar masses of carbon, nitrogen, water, hydrogen, sodium hydroxide, and many more memorized without having to even study them because we used them so much, so don't fret over memorization.
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