A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 301.1 mL of water (density 1.000 g/mL). What is the mass percent of the methanol?

Question

Question

Answer 1

✔ Recommended Answer

Answer #1

density \(=\frac{\text { mass }}{\text { volume }} \)

\(0.792=\frac{m}{200.0}\)

mass of methanol \(=200.0 \times 0.792\)

\(=158.49\)

mass of water \(=301.1 \times 1.0\)

\(=301.19\)

Total mass \(=158.4+30101\)

Mass % of methanol \(=\frac{\text {( mass of methanol) }}{\text { total mass }} \times 100\)

\(=\frac{158.4}{459.5} \times 100\)

\(=34.47 \%\)

answered by: BEN

Answer 2

Similar Homework Help Questions

A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 947.1 mL of...

A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 947.1 mL of water (density 1.000 g/mL). What is the mass percent of the methanol? 2 3 (х 1 1 4 5 6 + +/- 0 x 100 X 100
Question 3 2 pts A solution is made by mixing 1.42 g of methanol, CH2OH(1), with...

Question 3 2 pts A solution is made by mixing 1.42 g of methanol, CH2OH(1), with 592.mL of acetic acid, HC2H2O2(1). Calculate the concentration of the solute in the solution using the units given below. (Density of methanol = 0.792 g/mL. Density of acetic acid - 1.05 g/mL. Assume volumes mix additively.) Enter your answers in decimal form to 3 significant figures. Do not enter units since they are already provided. Molar: M molal: m mole fraction: mass percent: %(m/m)...
A solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water...

A solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water at 25 ∘C. The final volume of the solution is 118 mL. The densities of methanol and water at this temperature are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, calculate mole percent M=4.18 m=4.93 percent by mass= 13.6% mole fraction= 8.15*10^-2

4) 440 pnts) A solution is prepared by mixing some volume of methanol (MM = 32.04 g/mol, d=0.792 g/mL, p = 94.0 tor...

4) 440 pnts) A solution is prepared by mixing some volume of methanol (MM = 32.04 g/mol, d=0.792 g/mL, p = 94.0 torr) and acetone (MM=58.07 g/mol, d=0.784 g/mL, Pº = 240. torr) at room temperature. Assuming that the volumes additive on mixing. a) What is the mole fraction of acetone and methanol in solution if the number of acetone and methanol gas molecules above the solution are equal to one another? Assume ideal solution behavior.
The Boiling Point Diagram of Methanol-Water (Figure 5.6) shows Mole Fraction of Water versus Temperature, °C....

The Boiling Point Diagram of Methanol-Water (Figure 5.6) shows Mole Fraction of Water versus Temperature, °C. Using the following atomic weights and the density of methanol of 0.792 g/ml, a 41.5 % v/v methanol in water solution (41.5 ml methanol and 58.5 ml water) is what mole fraction of water? Round to 2 decimal points with no units. Remember that the density of water is defined in the metric system as 1. (C = 12, H = 1, N =...
The density of methanol at 20°C is 0.791 g/mL. What is the mass, in grams, of...

The density of methanol at 20°C is 0.791 g/mL. What is the mass, in grams, of a 197 mL sample?

A 500.0±0.2-mL solution was prepared by dissolving 25.00±0.03 mL of methanol (CH3OH, density=0.7914±0.0002 g/mL, molecular mass=32.0419±0.0009...

A 500.0±0.2-mL solution was prepared by dissolving 25.00±0.03 mL of methanol (CH3OH, density=0.7914±0.0002 g/mL, molecular mass=32.0419±0.0009 g/mol) in chloroform. Find the molarity ± uncertainty of the methanol.
please help 6) What is the mass percent of solute in solution made by dissolving 25.6...

please help 6) What is the mass percent of solute in solution made by dissolving 25.6 g of Nal in 150mL of water? (Density of water is 1.0g/mL) (2pts)
The percent by mass of methanol (MM = 32.04 g/mol) in an aqueous solution is 22.3%. What is the molality of the methanol solution?

The percent by mass of methanol (MM = 32.04 g/mol) in an aqueous solution is 22.3%. What is the molality of the methanol solution?

What is the osmotic pressure of a solution made from 22.3 g of methanol (MM =...

What is the osmotic pressure of a solution made from 22.3 g of methanol (MM = 32.04 g/mol) that was added to water to make 251 mL of solution at 25.0 °C?