WILL GIVE BRAINLIEST AND 20 POINTS! Calculate the number of moles of the indicated substance in each of the following samples.
A. 49.2 mg of sulfur trioxide 6.14 x 10-4 mol SO3
B. 7.44 x 104 kg of lead(IV) oxide
C. 59.1 g of chloroform, CHCl3
D. 3.27 mg of trichloroethane, C2H3Cl3
E. 4.01 g of lithium hydroxide

Acertain substance has a solubility of 12 grams in 100 grams of water at 20°c. this means that the substance will begin to dissolve when 12 grams are present in solution when 12 grams of the substance are stirred into a beaker with 100 g of water, it will begin settling at the bottom when 12 g of the substance are dissolved in 100 grams of water, the solution will be dilute when 12 g of the substance are dissolved in 100 grams of water, the solution will be saturated