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
garik1379 [7]
3 years ago
8

What pressure is exerted by 0.750 mol of a gas at 0 °C and a volume of 5

Chemistry
1 answer:
kow [346]3 years ago
7 0

Answer: 3.4 atm

Explanation:

Given that:

Volume of gas V = 5L

(since 1 liter = 1dm3

5L = 5dm3)

Temperature T = 0°C

Convert Celsius to Kelvin

(0°C + 273 = 273K)

Pressure P = ?

Number of moles of gas n = 0.75 moles

Note that Molar gas constant R is a constant with a value of 0.0821 atm dm3 K-1 mol-1

Then, apply ideal gas equation

pV = nRT

p x 5dm3 = 0.75 moles x (0.0821 atm dm3 K-1 mol-1 x 273K)

p x 5dm3 = 16.8 atm dm3

p = (16.8 atm dm3 / 5dm3)

p = 3.4 atm

Thus, a pressure of 3.4 atm is exerted by the gas.

You might be interested in
What is Acid ?<br>please don't report , don't give link and give the correct answer .​
VladimirAG [237]

Answer:

Below in Bold

✧ \underline{ \underline{ \red{ \large{ \tt{E \: X \: P \: L \: A \: N \: A \: T \: I \: O \: N}}}} }:

♨ The word ' acid ' is derived from the Latin word ' acidus ' which means sour. An acid is defined as the substance which gives hydrogen ions or protons ( H+ ) when dissolved in water. For example :

  • Hydrochloric acid
  • Sulphuric acid
  • Nitric acid
  • Carbonic acid
  • Acetic acid

✎ \underline{ \underline{ \purple{ \large{ \tt{Extra \: Info}}}}} :

☃ Physical properties :

  • Acids have a sour taste. But some acids like steric acid, boric acid , salisylic acid do not have a sour taste. Laboratory acids are more corrosive , so they are dangerous to taste.
  • Acid turn blue colour of litmus paper into red and light yellow methyl orange into red. They make phenolphthalein colourless.

☂ Chemical properties :

  • Acids have a high dissolving power and dissolve many substances. Some metals like zinc and magnesium react with acids like dilute sulphuric acid and dilute hydrochloric acid to produce salt and hydrogen gas.
  • Acid react with base to give salt and water.
  • Acid gives H+ ions when dissolved in water.
  • Acid react with metallic carbonates to produce carbon dioxide.

☼ Hope I helped! ♡

Have a wonderful day / night ! ツ

☥ \underbrace{ \overbrace{ \mathfrak{Carry \:On \: Learning}}}

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

4 0
3 years ago
Read 2 more answers
Which postulate of dalton's atomic theory not relevant anymore?explain
VLD [36.1K]

Modern atomic theory is, of course, a little more involved than Dalton's theory but the essence of Dalton's theory remains valid. Today we know that atoms can be destroyed via nuclear reactions but not by chemical reactions. Also, there are different kinds of atoms (differing by their masses) within an element that are known as "isotopes", but isotopes of an element have the same chemical properties.

Many heretofore unexplained chemical phenomena were quickly explained by Dalton with his theory. Dalton's theory quickly became the theoretical foundation in chemistry.

6 0
3 years ago
Consider the rate law below.
Inessa [10]
If you double the concentration of A, the rate is doubled. If you doubled the concentration of B, since the rate law has B^2, the rate is multiplied by 4. If you double both A & B's concentrations, then the rate would be multiplied by 2*4 = 8, which is the last option.
3 0
4 years ago
Read 2 more answers
What force determines the motions of planets and other objects in the solar system?
julia-pushkina [17]

Answer:

Gravity.

Explanation:

Gravity causes the motions of planets, stars, and galaxies. It's why the Moon orbits around the Earth, and the Earth orbits around the Sun, and the solar system orbits around the galaxy. It's all because of gravity. Gravity is the reason stars and planets are spherical.

8 0
4 years ago
Round 0.002346 to 3 significant figures.
Kruka [31]

Answer:

0.00235

Explanation:

  • Zeros that come before any non-zero digits are never significant.

  • Zeros that are in between any non-zero digits are always significant.

  • Zeros that come after any non-zero digit are ONLY significant if a decimal point in present somewhere in the number. (In this case there is a decimal point, but there aren't any zeros at the end of this number.)

The zeros at the beginning aren't significant, so include those zeros in your answer. The 6 at the end in greater than 5 so that rounds the 4 to up one number (In this case, it's 5).

This gives you 0.00235

6 0
3 years ago
Other questions:
  • A non-metallic atom(at.no. 9) forms a molecule of the same,containing a single covalent bond. give reason
    9·1 answer
  • What are the two forces that battle within a star ?
    6·2 answers
  • Under what conditions can a non-spontaneous reaction be made spontaneous?
    13·2 answers
  • Bond angle of ch4 and sih4
    7·1 answer
  • Write a paragraph explaining the effect of surface area on the rate of reaction.
    9·1 answer
  • How many moles of sodium hydroxide are there in 1.0mL of 2.0M NaOH
    11·1 answer
  • Which of the following has a negative charge? A. electron B. neutrino C. gamma rays D. alpha particles
    5·2 answers
  • A sample consisting of 65.0 g of xenon is confined in a container at 2.00 atm and 298 K and then allowed to expand adiabatically
    7·1 answer
  • A chemist has 3.55x1022 molecules of nitrogen monoxide. How
    10·1 answer
  • How does this support the theory that whales evolved from walking mammals? in embryo evidence
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!