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
Crank
2 years ago
8

If 3.66•10^23 molecules of a substance have a mass of 24.31g, what is the molar mass of the substance?

Chemistry
2 answers:
rosijanka [135]2 years ago
7 0

<u>Answer:</u>

Molar mass of substance = 40.0 g/mol

<u>Explanation:</u>

• First calculate the number of moles in 3.66 × 10²³ :

no. of moles = number of particles / Avogadro's Number

                     = (3.66 × 10²³)  /  (6.022 × 10²³)

                     = 0.6078 mol

• Now use the following equation to calculate the molar mass:

Molar mass = mass of substance / no. of moles

                   = 24.31 / 0.6078

                   = 40.0 g/mol

BlackZzzverrR [31]2 years ago
3 0
Answer is a I took the quiz
You might be interested in
What forms when two atoms combine? PLEASE HELP!!!!!!!
kolbaska11 [484]

Answer:

Option A - nucleus

Explanation:

A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds.

3 0
3 years ago
Read 2 more answers
Please help me, I am struggling please help
saw5 [17]
Answer:

Colors are seen by burning of metal salts, for example Sodium chloride makes yellow frame.
It is very common for fireworks to contain Aluminum, Iron, Steal, Zinc or the Magnesium’s dust to create bright light.
8 0
2 years ago
The first step in HNO3 production is the catalyzed oxidation of NH3. Without a catalyst, a different reaction predominates:
alexira [117]

Answer:

Kc = 6x10⁻⁶

Explanation:

For the reaction:

4NH₃(g) + 3O₂(g) ⇄ 2N₂(g) + 6H₂O(g)

Kc is defined as:

Kc =[N₂]² [H₂O]⁶ / [NH₃]⁴ [O₂]³

The equilibrium concentrations of the gases is -Because volume of the container is 1.00L-:

[N₂] = 2X = 1.96x10⁻³; <em>X = 9.8x10⁻⁴</em>

[H₂O] = 6X; 6ₓ9.8x10⁻⁴ = 5.88x10⁻³

[NH₃] = 0.0150M - 4X = 0.01108M

[O₂] = 0.0150M - 3X = 0.01206M

Replacing in Kc expression:

Kc =[1.96x10⁻³]² [5.88x10⁻³]⁶ / [0.01108M]⁴ [0.01206M]³

<h3>Kc = 6x10⁻⁶</h3>

8 0
3 years ago
Gaseous methane ch4 will react with gaseous oxygen o2 to produce gaseous carbon dioxide co2 and gaseous water h2o . suppose 1.44
Usimov [2.4K]
The balanced equation for the above reaction is;
CH₄ + 2O₂ ---> CO₂ + 2H₂O
Stoichiometry of CH₄ to O₂ is 1:2
The number of methane moles present - 1.44 g/ 16 g/mol = 0.090 mol
Number of oxygen moles present - 9.5 g/ 32 g/mol = 0.30 mol
If methane is the limiting reagent,
0.090 moles of methane react with 0.090x 2 = 0.180 mol 
only 0.180 mol of O₂ is required but 0.30 mol of O₂ has been provided therefore O₂ is in excess and CH₄ is the limiting reactant.
Number of moles of water that can be produced - 0.180 mol
Therefore mass of water produced - 0.180 x 18 g/mol = 3.24 g 
Therefore mass of 3.24 g of water can be produced 
6 0
3 years ago
Read 2 more answers
HELPPPP!!!!!!!!!!!!
xenn [34]

Answer:

nomelase ay pa la próxima

3 0
2 years ago
Other questions:
  • Which of the following is a mixture Air, water, salt or sulfur
    12·1 answer
  • Examples of physical and chemical weathering
    6·1 answer
  • A 0.100 g sample of a carbon–hydrogen–oxygen compound is combusted in a stream of pure oxygen and produces 0.220 g co2 and 0.239
    5·1 answer
  • Each liter of air has a mass of 1.80 grams. How many liters of air are contained in
    9·1 answer
  • How do buffers work in the human body?
    11·2 answers
  • 2) 3,160 tons of water flows over Niagra Falls every second. Assuming the water has a density of 1.00 g/ml,
    11·1 answer
  • To find the number of protons, neutrons, and electrons in a particular atom, you must know the mass number and the atomic number
    9·1 answer
  • ____is the degree of hotness or coldness of a body or place
    5·2 answers
  • 6. Positive uses of radioactive decay used by humans would not include
    15·1 answer
  • Which of the following transports information from the eye to the brain?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!