11. The solubility of the oxidizing agent potassium permanganate is 7.10 g per 100.0 g of water at 25 °C. What is the mole fraction of potassium permanganate in this solution? a. 0.00803
b. 0.00809
c. 0.449
d. 0.484

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

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.