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
Len [333]
3 years ago
6

Which method is used to obtain petrol from petroleum?

Chemistry
2 answers:
kotykmax [81]3 years ago
6 0

Explanation:

fractional distillation method is used to obtain petrol from petroleum...

hope it helps

tamaranim1 [39]3 years ago
5 0

Answer:

D fractional distillation

Explanation:

answer from gauth math

You might be interested in
For the following reaction, 4.34 grams of sulfur dioxide are mixed with excess oxygen gas . The reaction yields 3.89 grams of su
Degger [83]

Answer:

5.42g, 71.77%

Explanation:

First, we have to write out the balanced chemical equation. The unbalanced equation can be written as “SO2+O2 -> SO3” and to balance it, we can see that having two mols of SO2 and two mols of SO3 will make each side have the same amount of mols per element on each side. So the balanced chemical equation is “2SO2 + O2 -> 2SO3”

Now, we want to solve for the theoretical yield in grams of SO3. To do this, we have to use dimensional analysis. We convert g SO2 into mols SO2 using the molar mass of the elements. Then we convert mols of SO2 into mols of SO3 using the balanced equation. Once we’ve done that, we can convert mols of SO3 into grams of SO3.

You should know how to look up the molar mass of elements on the periodic table by now. Find the masses and set up the terms so they cancel like so:

4.34g \times  \frac{1mol \: so2}{64.07g \: so2}  \times  \frac{2 \: mol \: so3}{2 \: mol \: so2}  \times  \frac{80.07gso3}{1 \: mol \: so3}

Doing the math, we get 5.42g so3 as the theoretical yield. This is the most amount that you could ever get if the world was a perfect place. But alas, it isn’t and mistakes are gonna happen, so the number is going to be less than that. So the best we can do, is to figure out the percent yield that we got.

In a lab scenario, this was calculated to be 3.89 g as stated by the problem. The percent composition formula is

| \frac{result}{expected \: result} |  \times 100

and plugging the numbers into it, we get:

| \frac{3.89}{5.42} |  \times 100 = 71.77\%

make sure to follow the decimal/significant figure rules of your instructor, but only round at the end. My professor didn't care too much thankfully, but some professors do

6 0
2 years ago
Uranium atoms each have 92 protons. How many protons does each U-238 atom have?
Nesterboy [21]

A.92 all Uranium atoms contain the same amount of protons

5 0
3 years ago
Read 2 more answers
Make a generalization about the importance of tools to science.
nasty-shy [4]
Scientists use special tools to do their work. They gather data, or information, as they seek to learn about the world. In order to solve problems they must record data that is accurate and organized. This is an important part of the scientific method.
4 0
3 years ago
Read 2 more answers
Is hot tea homogeneous or heterogeneous?
OleMash [197]
<span>homogeneous  because particles are mixed uniformly</span>
6 0
3 years ago
Which stimulus is an example of an internal stimulus?
lawyer [7]

An example of an external stimulus is a decrease in oxygen levels in the blood during exercise.

Option C

<h3>What is stimulus?</h3>

A stimulus is defined as a thing or sensation that causes a specific reaction in an organ or tissue of a living organism

There are two types of stimuli:

  • Internal stimulus
  • External stimulus

Learn more about stimulus:

brainly.com/question/20117556

3 0
2 years ago
Other questions:
  • The compound methyl butanoate smells like apples. Its percent composition is 58.8% C, 9.8% H, and 31.4% O, and its molar mass is
    12·2 answers
  • Combustion of 7.54 g of liquid benzene (C6H6) causes a temperature rise of 50.3°C in a constant-pressure calorimeter that has a
    5·1 answer
  • If you were asked to convert 1.3 mol Al to atoms, which of the following should you use for the conversion?
    11·1 answer
  • Which reaction is not characteristic of an acid a)it dissolves magnesium oxide b) it produces ammonia from ammonium compounds c)
    10·1 answer
  • what is it called when more then one element is combined but do not loose their individual chemical properties
    13·1 answer
  • The reproductive organs of the male
    11·2 answers
  • Can someone please help me answer that question
    13·1 answer
  • What will litmus paper turn when it reacts with sodium nitrate?​
    5·1 answer
  • Why does the earth experience seasons?
    6·1 answer
  • Which statement describes an important role of carbon dioxide in Earth’s atmosphere? *
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!