Use the following equation:
Pb(SO4)2 + 4 LINO3 → Pb(NO3)2 +
2LI2SO4
How many moles of LINO3 are needed to make 6.34 mol of Pb(NO3)4?

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.