How do you find the fluid displacement of an object by using a graduated cylinder?

So first you record the initial amount of the water before putting in the object. Then you put in the object and record the number where the water is at. The using that number subtract the initial amount from the final and then that will be the fluid displacement of the object.

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.

a is the correct answer