A2.52 l tank at 25 oc has a nitrogen partial pressure of 19.5 atm, with the remaining of the 17.5 atm pressure due to neon. what mass of nitrogen is in the tank?

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

the answer is a for sure mark brainliest i had got this right on usatestprep

4d^55s^1 ( third choice)

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.