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
Dmitry_Shevchenko [17]
3 years ago
8

Methyl salicylate, C8H8O3, the odorous constituent of oil of wintergreen, has a vapour pressure of 1.00 torr at 54.3oC and 10.0

torr at 95.3oC.
a. What is its vapour pressure at 25oC?
b. What is the minimum number of liters of air that must pass over a sample of the compound at 25oC to vaporize 1.0 mg of it?
Chemistry
1 answer:
abruzzese [7]3 years ago
5 0
<span>Use the Arrhenius equation. Use p1 and p2 and T1 and T2 and solve for Ea (actgivation energy) in Joules, then plug that back into the Arrhenius equation and either p1 or p2 to calculate p at 25C.</span>
You might be interested in
What chemical changes occur during photosynthesis
Yakvenalex [24]

Answer:

Water and carbon dioxide combine to form glucose and oxygen.

I hope this helped :)

7 0
3 years ago
Read 2 more answers
A flame in a sealed container will go out. Explain what you know about combustion reactions to explain why.
klasskru [66]

Answer:

A combustion reaction is a reaction that involves a substance and oxygen reacts at high temperature and produces light energy and thermal energy and generate light and heat.

If a flame is in a sealed container it will go out due to the absence of oxygen to perform a combustion reaction that requires oxygen to produce heat and light. A flame is the result of a combustion reaction which also requires the oxygen to keep on burning.

3 0
2 years ago
Two unknown elements react to form a single compound. The compound is shiny and malleable. What would you expect to be true abou
Fed [463]
I believe the answer is B
7 0
3 years ago
Read 2 more answers
Ammonia is the most common and well-known weak base. A sample of household ammonia has a pH of 11.8. Determine its concentration
Galina-37 [17]

The given question is incomplete. The complete question is:

A sample of household ammonia has a pH of 11.50. What is the hydronium ion concentration of this solution?

Answer: The hydronium ion concentration of the solution is 1.58\times 10^{-12}M

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration. Acids have pH ranging from 1 to 6.9 and bases have pH ranging from 7.1 to 14.

NH_3+H_2O\rightarrow NH_4^++OH^-

pH=-\log [H^+]

11.8=-log [H^+]

[H^+]=antilog(-11.8)

[H^+]=1.58\times 10^{-12}M

Thus hydronium ion concentration of this solution is 1.58\times 10^{-12}M

7 0
2 years ago
Read 2 more answers
A compound contains only carbon, hydrogen, and oxygen. Combustion of 139.1 g of the compound yields 208.6 g of CO2 and 56.93 g o
Fofino [41]

Answer:

1. Mass of Carbon is 56.89g

2. Mass of Hydrogen is 6.33g

3. Mass of Oxygen is 75.88

Explanation:

The following were obtained from the question.

Mass of the compound = 139.1g

Mass of CO2 produced = 208.6g

Mass of H2O produced = 56.93

1. Determination of mass of Carbon (C). This is illustrated below:

Molar Mass of CO2 = 12 + (2x16) = 44g/mol

Mass of C = 12/44 x 208.6

Mass of C = 56.89g

2. Determination of the mass of Hydrogen (H). This is illustrated below:

Molar Mass of H2O = (2x1) + 16 = 18g/mol

Mass of H = 2/18 x 56.93

Mass of H = 6.33g

3. Determination of the mass of oxygen (O).

This is illustrated below:

Mass of the compound = 139.1g

Mass of C = 56.89g

Mass of H = 6.33g

Mass of O = Mass of compound - (mass of C + Mass of H)

Mass of O = 139.1 - (56.89 + 6.33)

Mass of O = 139.1 - 63.22

Mass of O = 75.88

3 0
3 years ago
Other questions:
  • Which is the least dense?
    9·1 answer
  • Two examples of energy transformations are shown. The energy transformations are similar because they both involve transformatio
    9·2 answers
  • Two samples of potassium iodide are decomposed into their constituent elements. The first sample produced 13.0 g of potassium an
    8·1 answer
  • Both isopropyl alcohol, C3H8OH, and ethylene glycol, C2H6O2, are used as antifreeze. When equal masses of each are added to wate
    8·2 answers
  • A 27.86 ml sample of 0.1744 m hno3 is tirades with 29.4ml of a job solution. What is the molarity of the koh
    5·1 answer
  • Which of the following statements is true?
    13·1 answer
  • In what specific situations would you use a light microscope? an electron<br>microscope?​
    7·1 answer
  • Paul added a sample of bromic acid to water and found the pOH to be 10. What is the pH of the solution?
    5·1 answer
  • A gas stream containing n-hexane in nitrogen with a relative saturation of 0.58 (as a fraction, multiply by 100% if you prefer %
    9·1 answer
  • The human body excretes nitrogen in the form of urea, NH₂CONH₂. The key step in its biochemical formation is the reaction of wat
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!