The mass of 45.0 L of Cl₂ at 87.0° C and 950 mm Hg is 134.7214 g.
Volume = 45.0 L
Temperature = = (87.0 + 273) K = 360 K
Pressure = 950 mm Hg (1 mm Hg = 0.00131579 atm) = 1.25 atm
The formula used to calculate moles is as follows.
∴PV = nRT
where,
P = pressure
V = volume
n = no. of moles
R = gas constant = 0.0821 L atm/mol K
T = temperature
Substitute the values into the above formula as follows:
∴ PV = nRT
=> 1.25 atm × 45.0 L = n × 0.0821 L atm/mol K × 360K
=> n = 1.25 atm × 45.0 L / n × 0.0821 L atm/mol K × 360K
=> n = 56.25 / 29.556 mol
=> n = 1.90 mol
Moles is the mass of a substance divided by its molar mass. So, the mass of Cl₂ (molar mass = 70.906 g/mol) is calculated as follows:
∴ Moles = mass / molar mass
=> 1.90 mol = mass / 70.906 g/mol
=> mass = 134.7214 g
Thus, we can conclude that the mass of 45.0 L of Cl₂ at 87.0° C and 950 mm Hg is 134.7214 g.
To know more about the Ideal Gas Law :
brainly.com/question/28976906
Answer:
They all contain sone hydrogen atoms.
Explanation:
H is hydrogen doi
Answer:
NH4+(aq) → NH3(aq) + H+(aq)
Explanation:
Following arrhenius, an acid can be defined as:
An Arrhenius acid is a substance that, when added to water, increases the concentration of H+ ions in water.
NH4+(aq) → NH3(aq) + H+(aq)
The ammonium ion acts as a weak acid in aqueous solution, dissociating into ammonia and a hydrogen ion.
An Arrhenius base is a substance that, when added to water, increases the concentration of OH- ions in water.
NH4+(aq) will not dissciate in OH- ions. So it's not a base, but an acid.
A neutral atom will have the same number of electrons as protons. Since you did not mention that it was ion, I will assume that it is a neutral atom.
In a neutral atom, the number of electrons is the same as the number of protons. An an ion, the number of electrons may be less than or even greater than the number of protons depending on the charge.
An atom is defined by the number of protons it has. If you change the number of protons, it becomes a different atom. However, if you change the number of electrons it has, it is the same atom but it is called an ion because it will have a different charge. If you change the number of neutrons, you do not change the atom, but you change the overall mass of the atom. Keep in mind that a neutron is as heavy as a proton, and that the mass of an electron is almost negligible when compared to the mass of a proton and neutron.
As this is a neutral atom, the number of electrons should be the same as the number of protons. There are 3 electrons in this atom. This would be the atom lithium.
