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mole numbers
from 200mg of carbondioxide, 10^21 molecules are removed. How many moles of CO2 are left?
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things you'll need to solve the problem:
1) #molecules in a mol (Avagdro's number) 2) molecular weight of CO2 (units are g/mol) 3) #moles CO2 in 200 mg (200mg = 0.200 g) 4) #molecules CO2 in the #moles calcualted for 3) voilą |
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