Achemist determined by measurements that 0.0800 moles of calcium sulfide participate in a chemical reaction. calculate the mass of calcium sulfide that participates.

5.77 g

Explanation:

Amount of calcium sulfide = 0.0800 mol

Molar mass of calcium sulfide = 72.1 g/mol

Mass of calcium sulfide = 0.0800 mol x 72.1 g/mol

= 5.77 g

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.