1 poin 20.60 mL of oxygen is collect over water with a barometric pressure of
695 mmHg with a water temperature of 40 degrees Celsius. Find the
volume of the dry gas at STP

catya your not at all which answer i've seen you do this on another question!

more infor would

a lot

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.