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
atroni [7]
3 years ago
8

How could you show experimentally that the molecular formula of propene is c3h6, not ch2?

Chemistry
2 answers:
Valentin [98]3 years ago
6 0
Answer : By performing the experiment for calculating the elevation in boiling point and finding out the <span>ebuilloscopic</span> constant for the solvent we can find the molecular formula of the unknown solute.

Also by performing the experiment for depression in freezing point one can find the molecular formula for any unknown solute. We can find the cryoscopic constant for the solute and it will help in determining the molecular formula.
katen-ka-za [31]3 years ago
5 0

Answer:

By performing experiments related with the elevation in boiling point and depression in freezing point.

Explanation:

Hello,

In this case, we use the concept of colligative properties of solutions because they depend on the concentration of solute molecules or ions rather than its identity. They are classified as vapor pressure lowering, boiling point elevation, freezing point depression and osmotic pressure.

Elevation in boiling point and depression in freezing point are suitable for us to determine the molecular formula of propane as shown below:

- Elevation in Boiling Point: by performing an elevation in boiling point experiment, it is possible to quantify ebuilloscopic constant for the solvent, in order words, the molal (referred to molality) boiling point elevation constant of propane, using it as a solute. Then, one applies the formula:

\Delta T_b=i*Kb*m_{solute}

To compute the molality and subsequently propane's molecular mass.

- Depression in freezing point: by performing this one, it is possible to determine the molecular mass of the propane. Thus, we find the molal freezing point depression constant of the solvent to subsequently apply the shown below formula:

\Delta T_f=i*Kf*m_{solute}

Which is suitable to compute the molality as well as in the previous case.

Best regards.

You might be interested in
What coefficient would the O 2 have after balancing C 4 H 10 +O 2 CO 2 +H 2 O ?
nydimaria [60]

Answer: 6

Explanation:

6 0
3 years ago
Sulfur dioxide is released when fossil fuels burn. What does sulfur dioxide cause? ASAP PLZ
soldi70 [24.7K]

Answer:

acid rain

Explanation:

When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain. Acid rain can: cause deforestation.

4 0
3 years ago
What is the temperature difference if 300 cal are used to warm water
PIT_PIT [208]

Answer:

<u>The temperature difference is</u> \frac{300}{m} Kkg^{-1}

Explanation:

The formula that is to used is :

ΔQ=msΔT

<em>where ,</em>

  • <em>ΔQ is the heat supplied in calories = 300cal</em>
  • <em>m is the mass of water taken = m (assumed)</em>
  • <em>ΔT is the change in temperature</em>
  • <em>s is the specific heat of water = 1calK^{-1}Kg^{-1}</em>

ΔT :

\frac{300}{m*1} \\=\frac{300}{m} Kkg^{-1}

6 0
3 years ago
The pH of a solution is measured to be pH=10. What is true of this solution?
Marta_Voda [28]

Answer:

a. the solution is a base

Explanation:

The pH range is between 0 to 14.

A solution with a pH value between 0 and 6 is said to be acidic.

A solution with pH value at 7, is said to be neutral, e.g., distilled water.

A solution with pH value between 8 and 14 is a base.

Given pH = 10, a pH value of 10 falls between the base or alkali range of the indicator

8 0
3 years ago
HELP AGAIN PLSS:
murzikaleks [220]
This is true


Because when water evaporates molecules break and separate into different atoms
4 0
2 years ago
Other questions:
  • Please help me i need help
    8·2 answers
  • Tornadoes can be identified and tracked using advanced instruments that can detect small changes in wind velocity and air pressu
    14·1 answer
  • How have humans contributed to an increase in carbon dioxide levels in the past 100 years?
    5·1 answer
  • What is the total mass (amu) of carbon in each of the following molecules?
    6·1 answer
  • Explain the relationship between heat and thermal energy
    7·2 answers
  • If the half-life of thorium-234 is 25 days how long would it take for thorium-234 to decay from 44g to 4.4g and why
    6·1 answer
  • Why is it difficult to determine earth's inner structure
    15·1 answer
  • What is one way to make stored water safe?
    14·1 answer
  • A gas has an initial volume of 15 L. If the temperature increases from 330 K to 450 K, what is the new volume.
    14·1 answer
  • HELP ASP
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!