at-25-c-100-ml-of-isopropyl-alcohol-c3h8o-is-diluted-with-42-9-ml-of-water-at-th

Question

At 25°C, 100 mL of isopropyl alcohol ($$C_{3}$H_{8}O) $$was mixed with 42.9 mL of water to create a solution. At the same temperature, the densities of isopropyl alcohol and water are 0.781 g/mL and 1.00 g/mL, respectively. What is the concentration of this solution in percent by mass?

Accepted Answer

64.5% by mass

Answer

70.0% by mass

Answer

35.5% by mass

Answer

30.0% by mass

At 25°C, 100 mL of isopropyl alcohol (C3H8O) was mixed with 42.9 mL of water to create a solution. At the same temperature, the densities of isopropyl alcohol and water are 0.781 g/mL and 1.00 g/mL, respectively. What is the concentration of this solution in percent by mass?

At 25°C, 100 mL of isopropyl alcohol (C₃H₈O) was mixed with 42.9 mL of water to create a solution. At the same temperature, the densities of isopropyl alcohol and water are 0.781 g/mL and 1.00 g/mL, respectively. What is the concentration of this solution in percent by mass?