damn G chem

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dexadental

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Im a chem guy but have a prob...when you are using all that scientific notation, calculating energies and stuff, you add the exponents right?
like for example,
(2.4566*10^-24)(3.282*10^48)...I know the exponent would be 10^24, but how in the hell do you figure out the first number??? If I can do this I could get alot of these problems for the DAT, thanks!