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
jeka57 [31]
3 years ago
13

What is mole concept and muscular mass

Chemistry
1 answer:
Fantom [35]3 years ago
6 0

the mole concept :

a mole (mol) is defined as the amount of substance that contains as many atoms, molecules, icons, electrons or any other elementary entities as there are carbon atoms in exactly 12 gm of. the number of atoms in 12gm of is called Avogadro's number.

I'm not sure about muscular mass sorryyyy

You might be interested in
How are sunspots correlated with the sun's activity?
amm1812

Answer:

If sunspots are active, more solar flares will result creating an increase in geomagnetic storm activity for Earth.

Explanation:

I ask mom

8 0
3 years ago
Using the phase diagram for CO,, what phase is carbon dioxide in at 12 atm
Ksju [112]

Answer:liquid

Explanation:

7 0
4 years ago
Consider the following reaction at equilibrium. What effect will decreasing the temperature have on the system? DH=+890kJCO2(g)+
AlladinOne [14]

Answer:

Option B. The reaction will shift to the left in the direction of the reactants.

Explanation:

The equation for the reaction is given below:

CO₂ + 2H₂O <=> CH₄ + O₂

Enthalpy change (ΔH) = +890 KJ

The reaction illustrated by the equation is endothermic reaction since the enthalpy change (ΔH) is positive.

Increasing the temperature of an endothermic reaction will shift the equilibrium position to the right and decrease the temperature will shift the equilibrium position to the left.

Therefore, decreasing the temperature of the system illustrated by the equation above, will shift the reaction to the left in the direction of the reactants.

Thus, option B gives the right answer to the question.

3 0
3 years ago
15A.4(a) What is the temperature of a two-level system of energy separation equivalent to 400 cm−1 when the population of the up
maksim [4K]

Answer:

T = 525K    

Explanation:

The temperature of the two-level system can be calculated using the equation of Boltzmann distribution:

\frac{N_{i}}{N} = e^{-\Delta E/kT}  (1)

<em>where Ni: is the number of particles in the state i, N: is the total number of particles, ΔE: is the energy separation between the two levels, k: is the Boltzmann constant, and T: is the temperature of the system </em>         

The energy between the two levels (ΔE) is:

\Delta E = hck    

<em>where h: is the Planck constant, c: is the speed of light and k: is the wavenumber</em>      

\Delta E = 6.63\cdot 10^{-34} J.s \cdot 3\cdot 10^{8}m/s \cdot 4 \cdot 10^{4}m^{-1} = 7.96 \cdot 10^{-21}J  

Solving the equation (1) for T:

T = \frac{-\Delta E}{k \cdot Ln(N_{i}/N)}  

<em>With Ni = N/3 and k = 1.38x10⁻²³ J/K, </em><em>the temperature of the two-level system is:</em><em> </em>

T = \frac{-7.96 \cdot 10^{-21}J}{1.38 \cdot 10^{-23} J/K \cdot Ln(N/3N)} = 525K                                  

I hope it helps you!

3 0
3 years ago
Which tool would you use to predict the percentage of offspring that will have a specific trait?
Anon25 [30]
Flow chart hope it helps
6 0
3 years ago
Other questions:
  • A substance has a density of 6.26 g mL-1. What is the volume that a 2.49 g sample would occupy?​
    10·1 answer
  • Anne brought a 1 L bottle of vinegar from home to use in an experiment on volcanoes in science class. she poured the contents of
    5·1 answer
  • Identify each section of the periodic table.<br><br> metals<br> nonmetals<br> metalloids
    6·2 answers
  • Patients give doctors information inside the protection of confidentiality agreements. Should the doctor refer the patient to a
    7·1 answer
  • How would you separate copper sulfate crystals from its solution?​
    6·1 answer
  • Which of the following would result if the gases that are responsible for the greenhouse effect were removed from our atmosphere
    7·1 answer
  • A chemist determines by measurements that moles of nitrogen gas participate in a chemical reaction. Calculate the mass of nitrog
    12·1 answer
  • Investigation: Cells are the basic unit of life.
    9·2 answers
  • Would using a strainer be filtration?
    13·1 answer
  • Which of these models show atoms that have joined together? Select all that apply.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!