Multiple Choice
A solution contains 15 ppm of benzene. The density of the solution is 1.00 g/mL. This means that ________.
A) there are 15 mg of benzene in 1.0 g of this solution
B) 100 g of the solution contains 15 g of benzene
C) 1.0 g of the solution contains 15 × 10-6 g of benzene
D) 1.0 L of the solution contains 15 g of benzene
E) the solution is 15% by mass of benzene
Correct Answer:

Verified
Correct Answer:
Verified
Q16: Calculate the molality of a 35.0% (by
Q17: A solution contains 33% phosphoric acid by
Q18: The Henry's law constant for helium gas
Q22: The concentration of lead nitrate (Pb(NO<sub>3</sub>)<sub>2</sub>)in a
Q24: A solution is prepared by dissolving 23.7
Q25: The concentration of KBr in a solution
Q26: The concentration of a benzene solution prepared
Q128: A solution contains 39% phosphoric acid by
Q131: When solutions of strong electrolytes in water
Q145: The ideal value of i (van't Hoff