Can someone help me with my Physics homework?
1) 2.5*10^26 molecules=_____________ moles
2) 100 Liters=_____________ molecules
3) 7.5*10^3 mL=_____________ liters
i did the rest but i didn’t understand these can anyone help me please!!
Favorite Answer
There are 1000 mL in a liter.
To find the number of molecules in 100 liters you must know the material that the liter is composed of.
so (2.5 x 10^26 molecules) / (6.02 x 10^23 molecules/mole) = moles
(7.5 x 10^3 mL) / (1000 mL/L) = liters
molecule to moles= no.of molecules / avogadro number
avogadro number is6.02×10^23
litres to mole then moles to molecules
from litres to moles divide by 24 for rtp and 22.4 for stp once u divide you would get the number of moles then multiply thses number of moles with avogadro number to get number of molecules
from mL to litres juz divide by 1000
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