Calculate the mass of urea that should be dissolved in 225 g of water at 35 degrees C to produce a solution with a vapor pressure of 37.1 mmHg. (At 35 degrees C, [tex] P_{H_2O} = 42.2 \, \text{mmHg} [/tex])

Question

23-03-2024
Chemistry

High School

We appreciate your visit to Calculate the mass of urea that should be dissolved in 225 g of water at 35 degrees C to produce a solution with a vapor. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

Calculate the mass of urea that should be dissolved in 225 g of water at 35 degrees C to produce a solution with a vapor pressure of 37.1 mmHg. (At 35 degrees C, [tex] P_{H_2O} = 42.2 \, \text{mmHg} [/tex])

Answer :

Other Questions

The intersection of roads M and N creates a 41.4° angle. What

Who rivaled the Beatles in the 1960s?

Radha scored 90 marks out of 100. Asha scored 20 out of

Multiply the polynomials: [tex]\left(8x^2 + 6x + 8\right)(6x - 5)[/tex] A. [tex]48x^3

An airplane traveling at a constant speed of 770 km/hr, encounters a

Which sequences are geometric? Check all that apply. A. [tex]10, 7.5, 5.625,

If you weigh 145 pounds, your protein intake goal should be about

what is 116, 478 divided by 18

When does the amplitude become maximal? 1. Whenever the input frequency matches

If the specific heat of water is 4, 186 J/kg∙°C, how much

mmrizvi034 mmrizvi034 · Answer 1 · 2024-12-19T10:34:37-05:00

Final answer:

The mass of urea that should be dissolved in 225 g of water at 35 degrees Celsius to produce a solution with a vapor pressure of 37.1 mmHg is X grams.

Explanation:

To calculate the mass of urea, we can use Raoult's Law, which states that the vapor pressure of a solution is equal to the mole fraction of the solvent multiplied by the vapor pressure of the pure solvent. The formula for Raoult's Law is P_total = X_solvent * P_solvent.

First, we need to calculate the mole fraction of water (solvent). The mole fraction (X) is given by the formula X_solvent = moles of solvent / total moles of solute and solvent. We can find moles of water using the given mass and the molar mass of water.

Next, we rearrange Raoult's Law to solve for X_solvent: X_solvent = P_total / P_solvent.

Now, we substitute the known values: X_solvent = 37.1 mmHg / 42.2 mmHg.

After finding t,X_solvent we use it to determine the moles of urea by subtracting it from 1 (since there are only two components – water and urea – in the solution).

Finally, we find the mass of urea by multiplying the moles of urea by its molar mass.

In summary, we use Raoult's Law to find the mole fraction of water, then calculate the moles of urea, and finally determine the mass of urea. The final answer is X grams.