Answer:
2.0 atm is the difference between the ideal pressure and the real pressure.
Explanation:
If 1.00 mole of argon is placed in a 0.500-L container at 27.0 °C
Moles of argon = n = 1.00 mol
Volume of the container,V = 0.500 L
Ideal pressure of the gas = P
Temperature of the gas,T = 27 °C = 300.15 K[/tex]
Using ideal gas equation:


Vander wall's of equation of gases:
The real pressure of the gas= 
For argon:
b=0.03219 L/mol.



Difference :
2.0 atm is the difference between the ideal pressure and the real pressure.
Answer:
Equilibrium concentration of Br₂ = 0.02 M
Explanation:
Moles of hydrogen gas :
Given, Mass of H₂ = 1.374 g
Molar mass of H₂ = 2.016 g/mol
The formula for the calculation of moles is shown below:
Thus,

Moles of Bromine gas :
Given, Mass of Br₂ = 70.31 g
Molar mass of Br₂ = 159.808 g/mol
The formula for the calculation of moles is shown below:
Thus,

Considering the ICE table for the equilibrium as:
H₂(g) + Br₂(g) ⇌ 2HBr(g)
t = o 0.68 0.44 0
t = eq -x -x +2x
---------------------------------------------
-----------------------------
Moles at eq: 0.68-x 0.44-x 2x
Given that: At equilibrium the vessel is found to contain 0.566 g of H₂
Moles = 0.566 g / 2.016 g/mol = 0.28 moles
Thus, 0.68 - x = 0.28
x = 0.40 moles
Volume = 2.00 L
Equilibrium moles of Br₂ = 0.44 - 0.40 moles = 0.04 moles
<u>Equilibrium concentration of Br₂ = 0.04 moles/ 2 L = 0.02 M</u>
Answer:
electromagnetic waves
Explanation:
Radiation is the transfer of heat energy through space. Most of them are sent through electromagnetic waves.
Answer: GROUP 2 is the only group to include only metals. Group one includes the most metalic metals but hydrogen is usually put into group one and obviously hydrogen is not a metal. Group 2 includes Br, Mg, Ca, Sr, Ba,Ra.
Explanation:
The tool or instrument which is used to measure an object’s mass is electronic balance
Mass is a fundamental quantity
<h3>What is fundamental quantities?</h3>
Fundamental quantities can be defined as those physical quantities which forms the basic unit of measurement. They are the quantities upon which other quantities and units are derived from.
Mass is measured in kilograms (kg)
Other examples of fundamental quantities apart from mass are as follows:
- Length
- Time
- Amount of substances
- Luminous intensity
- Temperature
- Magnetic flux
So therefore, the tool or instrument which is used to measure an object’s mass is electronic balance
Learn more about fundamental/physical quantities:
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