Answer : The pressure of the hydrogen gas exert before its volume was decreased will be, 2.28 atm
Explanation :
According to the Boyle's law, the pressure of the gas is inversely proportional to the volume of the gas at constant temperature of the gas and the number of moles of gas.
or,
or,
where,
= initial pressure of the gas = ?
= final pressure of the gas = 5.09 atm
= initial volume of the gas = 12.16 L
= final volume of the gas = 5.45 L
Now put all the given values in this formula, we get the initial pressure of the gas.
Therefore, the pressure of the hydrogen gas exert before its volume was decreased will be, 2.28 atm
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Force is a vector quantity therefore it has both direction and magnitude.
Hence scientists measure magnitude and direction of a force.
Correct answer is option A
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Answer:
2.9 is the initial pH of the analyte solution.
Explanation:
The dissociation constant of acetic acid as per theoretical value =
The initial concentration of acetic acid = c = 0.0900 M
initially
c 0 0
At equilibrium
(c-x) x x
The expression of dissociation constant :
Solving for x:
x = 0.001264 M
The pH of the solution :
2.9 is the initial pH of the analyte solution.
when she reaches for the cup that is somatic nervous system. when she begins to cough
Answer:
Experimentation is the best way to obtain knowledge.
Explanation:
This is a statement and it is scientific