Assume that the average volume found using the 25-ml graduated cylinder in Part B is the "true" or accepted value of the volume. Calculate the percent error for the average
volume of water measured using the 100-ml graduated cylinder.

pv=nrt

explanation:

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.