6. Chalcopyrite, the principle ore of copper, contains 34.63 percent copper by mass. How many grams of copper can be obtained from 5.11 x 103 kg of the ore ?

ugh fiel iente of insistí is did kiwis jaj

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.