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
puteri [66]
3 years ago
10

3. How many moles of carbon dioxide gas, CO2, are there in 2.8 L of this gas at STP?

Chemistry
1 answer:
kenny6666 [7]3 years ago
5 0

Answer:

The answer is: 0,13 moles of CO2

Explanation:

We use the formula PV=nRT. The conditions STP are 1 atm of pressure and 273K of temperature:

PV=nRT n=PV/RT

n=1 atm x 2,8 L/ 0,082 l atm/K mol x 273K

n= 0,125078173 mol

You might be interested in
Show the reaction sequences that explain these transformations
sineoko [7]
I don't know because your question is very unclear
6 0
3 years ago
If 550 mL of a 3.50 M KCl solution are set aside and allowed to evaporate until the volume of the solution is 275 mL, what will
tatiyna

Answer:

Explanation:

Molarity = number of moles / volume

If 550 mL of a 3.50 M KCl solution are set aside and allowed to evaporate until the volume of the solution is 275 mL, which is half of 550 mL, the molarity of the solution with the same number of moles of KCl is 3.5 * 2 = 7.00 M

8 0
2 years ago
Read 2 more answers
What does the scientific method process allow for?
inn [45]

It allows to test a inference, and analyze data to determine if the inference of the observation was correct.

5 0
3 years ago
Give example of a compound
MrMuchimi

Answer:

The seven crystal systems are a method of classifying crystals according to their atomic lattice or structure. The atomic lattice is a three dimensional network of atoms that are arranged in a symmetrical pattern. The shape of the lattice determines not only which crystal system the stone belongs to, but all of its physical properties and appearance. In some crystal healing practices the axial symmetry of a crystal is believed to directly influence its metaphysical properties. For example crystals in the Cubic System are believed to be grounding, because the cube is a symbol of the element Earth.

Explanation:

Hope it helps u

FOLLOW MY ACCOUNT PLS PLS

3 0
3 years ago
If you boil a sample of water, the steam that results will have: Select the correct answer below: less mass than the water more
Over [174]

Answer: less mass than the water

Explanation:

8 0
3 years ago
Other questions:
  • During what stage of the cell cycle does replication occur
    7·1 answer
  •  Ions are electrically charged particles that are formed when certain compounds are dissolved in water. These solutions will con
    5·2 answers
  • 1. Which of the following best describes the relationship
    13·1 answer
  • A bug travels at the rate of 3 miles/hours. How fast is this in um/nsec
    15·1 answer
  • When water freezes into ice, sme of the properties have changed <br> What stays the same
    10·1 answer
  • A reaction produces 0.863 moles of H2O. How many molecules are produced?
    10·2 answers
  • What is a nonpolar bond?
    14·2 answers
  • The molar concentration of sucrose in a can of soda is 0.375 M. How much sucrose would be found in a 2 liter bottle of soda of t
    15·1 answer
  • The pencil is material or mixture ?please help ​
    13·1 answer
  • A student prepares a 100.0 mL solution using 44.7 grams of potassium nitrite. They then take 11.9 mL of this solution and dilute
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!