Asked Feb 7, 2020

Calculate the vapor pressure of water  over the resulting solution when 45.8 g sugar (mw=342.296 amu) is dissolved in 150 mL of H2O. The vapor pressure od pure H2O is 24.2.


Expert Answer

Step 1

Density of water = 1 g/ml

So, mass of water = volume x density = 150 ml x 1 g/ml =150 g

Number of moles of water, n1 = mass/ molar mass = 150 g /18 g/mole = 8.3 mole

Number of moles of sugar,n2 = given mass / molar mass = 45.8 g / 342.3 g/mole = 0.13 m...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Dinitrogen pentoxide (N2O5) decomposes as follows to nitrogen dioxide and nitrogen trioxide:$$N2​O5​...

A: The balanced equation and the rate of the equation is expressed below:


Q: |27. Explain why (a) some exothermic reactions do not occur spontaneously, and (b) some reactions in...

A: Click to see the answer


Q: Which is true about the movement of water from a lower concentration to a higher concentration?

A: Osmosis takes place when solvent molecule passes through a semipermeable membrane from solution havi...


Q: A 100% 7:07 PM Wed Feb 5 Unanswered •1 attempt left For reaction 2A + 3B → 2C + D, following data of...

A: The order of the reaction with respect to A is calculated as follows:


Q: The freezing point of CCl4 is -22.92°C. Calculate the freezing point of the solution prepared by dis...

A: The molar mass of pyrazine is 80.09 g/mol. The number of moles of pyrazine is calculated below.


Q: 2. An acetaminophen suspension for infants contains 80. mg / 0.80 mL. The recommendeddose is 15 mg /...

A: Given, Acetaminophen suspension for infants = 80mg/0.80mL. Recommended dose = 15mg/kg body weight. W...


Q: 4. Reconsider your energy level diagram for magnesium. Imagine adding electrons untr you reached the...

A: Since there are multiple questions, we are authorized to answer only first question, that is, no. 4....


Q: A reaction involves the following elementary steps:H2​(g)+O2​(g)---->H2​O2​(g)H2​(g)+H2​O2​(g)---...

A: The sum of two reactions gives the overall reaction with the addition of same species in the reactio...


Q: Carbohydrates serve as a vital source of chemical energy to the human body. Carbohydrates are broken...

A: Generally, 1 kcal contains 4.184 kJ.