1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexus [3.1K]
3 years ago
9

What would be the vapor pressure at 25.0 °c of a solution of 5.00 g of glucose (c6h12o6) in 100.0 g of ethanol (c2h5oh)?

Chemistry
1 answer:
Crank3 years ago
4 0
Use Raoult's Law:
Psolution = (χsolvent) (P°solvent)

24.90 = (x) (25.756)

x = 0.966765 (this is the solvent mole fraction)

χsolute = 1 - 0.966765 = 0.033235

χsolute = 0.03324 (to four sig figs)
You might be interested in
Entropy change in an internally reversible isothermal process is _______ to the temperature of the system.
alukav5142 [94]

Answer:

Internally reversible is the answer.

Explanation:

3 0
3 years ago
Any element can always be identified by its:
Alborosie

Explanation:

atomic mass

Really...i think it can also be atomic number..

3 0
4 years ago
What 2 properties make capillary action possible
Natali5045456 [20]
Cohesion and adhesion
7 0
3 years ago
An unknown diprotic acid (H2A) requires 44.391 mL of 0.111 M NaOH to completely neutralize a 0.58 g sample. Calculate the approx
Anna [14]

Answer:

M=235.42g/mol

Explanation:

Hello!

In this case, given this is an acid-base neutralization and we are considering a diprotic acid, we can write the following mole-mole relationship:

2n_{acid}=n_{base}

It means that the moles of acid can be computed given the volume and concentration of NaOH:

n_{acid}=\frac{M_{base}V_{base}}{2} =\frac{0.044391L*0.111mol/L}{2} \\\\n_{acid}=2.46x10^{-4}mol

It means that the approximate molar mass of the acid is:

M=\frac{m_{acid}}{n_{acid}} \\\\M=\frac{m_{acid}}{n_{acid}} =\frac{0.58g}{2.46x10^{-3}mol}\\\\M=235.42g/mol

Best regards!

5 0
3 years ago
For the following pairs of ions, use the concept that a chemical compound must have a net charge of zero to predict the formula
Dafna11 [192]

\\ \sf\longmapsto FeP

\\ \sf\longmapsto Fe_2S_3

\\ \sf\longmapsto FeCl_2

\\ \sf\longmapsto MgCl_2

\\ \sf\longmapsto MgO

\\ \sf\longmapsto Mg_3N_2

\\ \sf\longmapsto Na_3P

\\ \sf\longmapsto Na_2S

\\ \sf\longmapsto CoO

\\ \sf\longmapsto Co_2S_3

\\ \sf\longmapsto AlCl_3

\\ \sf\longmapsto CsBr

\\ \sf\longmapsto Ti_2O_4

\\ \sf\longmapsto Ag_2S

4 0
3 years ago
Other questions:
  • What is the difference between a chemical reaction and a physical reaction?
    5·2 answers
  • Most covalent compounds are very ______ electrolytes in solutions.
    6·1 answer
  • Measurements show that the energy of a mixture of gaseous reactants increases by during a certain chemical reaction, which is ca
    9·1 answer
  • Study the diagram and answer these questions:
    5·2 answers
  • Use the periodic table to calculate the molar mass of each compound below. Give your answer to the
    5·1 answer
  • Samples of four group 18 elements,antimony, arsenic,bismuth and phosphorus are in the gaseous phase. An atom in the ground state
    13·1 answer
  • How do you know that a sealed calorimeter is a closed system?
    7·2 answers
  • What is the pH of a solution prepared by mixing 100.00 mL of 0.020 M Ca(OH)2 with 50.00 mL of 0.100 M NaOH? Assume that the volu
    13·1 answer
  • A cylinder at left with balls evenly spaced throughout the cylinder with an arrow leading to a cylinder at right with balls stac
    15·2 answers
  • will mark brainlest 1) Now that you have studied the facts about the Severn River, you are ready to make a decision. What questi
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!