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I'm a little confused on how the units cancel out for the equation E= hv. Planck's constant is represented in J x s while frequency is represented in Hertz. How does the multiplication of Hertz with Joules and seconds end up canceling out to just have E in units of Joules?
I like to write it out like in dimensional analysis. It will help you follow your work, and you can clearly see what can be cancelled out. Since 1 Hertz is 1/s, if you multiply it with Jxs, the s will be cancelled out, leaving just s. I suggest writing out the units in your work for dimensional analysis throughout chemistry problems such as converting moles to grams and comparing molar ratios.
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