Question 4 20 pts
What is the percent by mass of aluminum in 65.12 g of a compound that contains 34.46 g of aluminum?
52.92%
69.34%
47.08%
O 30.66%

confused

confused             hewdejdnjnjsnd

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.