Which of the following elements is the most reactive? potassium, lithium sodium, or rubidium
2 answers:
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The ideal gas law:
p - pressure, n - number of moles, R - the gas constant, T - temperature, V - volume
The volume and temperature of all three containers are the same, so the pressure depends on the number of moles. The greater the number of moles, the higher the pressure.
The mass of gases is 50 g.
The greatest number of moles is in the container with Ar, so there is the highest pressure.
p - pressure, n - number of moles, R - the gas constant, T - temperature, V - volume
The volume and temperature of all three containers are the same, so the pressure depends on the number of moles. The greater the number of moles, the higher the pressure.
The mass of gases is 50 g.
The greatest number of moles is in the container with Ar, so there is the highest pressure.
A chemist is using a solution of HNO₃ that has a pH of 3.75. what is [H⁺] for the solution is 1.7 × 10⁻⁴M.
<h3>How do we calculate the [H⁺]?</h3>Concentration of H⁺ ion will be calculated by using the below equation of pH as:
pH = -log[H⁺]
or [H⁺] =
Given that, pH = 3.75
So concentration of H⁺ ion will be calculated as:
[H⁺] =
[H⁺] = 1.7 × 10⁻⁴M
Hence concentration of H⁺ ion is 1.7 × 10⁻⁴M.
To know more about pH & [H⁺], visit the below link:
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