A 12. A graduated cylinder has 22 mL of water placed in it. An irregularly shaped rock is
then placed in the graduated cylinder and the volume of the rock and water in the
graduated cylinder now reads 30 ml. The mass of the rock is 24 g. A) Find the
volume of the rock. B) Find the density of the rock.
AI

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the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

can you attach the