Monday, November 16, 2009

Chemistry problem dealing with moles..help!?

info


earth to pluto and back-11.8 billion km


mole (mammal)-7 inches





how many moles of moles (the mammal) would it take to get from earth to pluto and back? you must use the factor label method.

Chemistry problem dealing with moles..help!?
Convert km to inches and multiply time the length of the mole ( mammal ) by 6.022 X 10^23. Then do some ratio comparison; divide.
Reply:11.8x10^9 km x 1000 m/km x 100 cm/m x (1 in/2.54 cm)(1 mammal/ 7 in)x (1 mole/6.022x10^23 mammals) = 1.10x10^-10 moles of mammals


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