Answer:
There are 29.4 grams of oxygen in the container
Explanation:
<u>Step 1: </u>Data given
Volume = 20.0 L
Pressure = 845 mmHg
Temperature = 22.0 °C
Molar mass of O2 = 32 g/mol
<u>Step 2:</u> Ideal gas law
p*V = n*R*T
⇒ p = the pressure of the gas = 845 mmHg = 1.11184
⇒ V = the volume of the gas = 20.0 L
⇒ n = the number of moles = TO BE DETERMINED
⇒R = the gasconstant = 0.08206 L*atm/K*mol
⇒ T = the temperature = 22°C + 273 = 295 Kelvin
n = (p*V)/(R*T)
n = (1.11184*20.0)/(0.08206*295)
n = 0.9186 moles
<u>Step 3:</u> Calculate mass of NO2
Mass of O2 = Moles O2 * Molar mass O2
Mass of O2 = 0.9186 moles * 32 g/mol
Mass of O2 = 29.4 grams
There are 29.4 grams of oxygen in the container
Answer is: D. Lewis base.
Lewis acid is a chemical element, molecule or ion that contains an empty orbital which is capable of accepting an electron pair from a Lewis base. A Lewis base is element, molecule or ion that has a filled orbital and has electron pair which is not involved in bonding and can give it to Lewis acid. Lewis base is for example ammonia (NH3).
The 4:00 time because later that afternoon would be later in the day
The empirical formula of compounds formed from the given ions are as follows:
- Pb⁴⁺ = PbO₂
- NH₄⁺ = NH₄Cl
- CrO₄²⁻ = Na₂CrO₄
- SO₄²⁻ = K₂SO₄
<h3>What is the empirical formula of a compound?</h3>
The empirical formula of a compound is the simplest formula of the compound showing the simplest ratios in which elements in the compound combine.
The empirical formula of compounds formed from the given ions are as follows:
- Pb⁴⁺ = PbO₂
- NH₄⁺ = NH₄Cl
- CrO₄²⁻ = Na₂CrO₄
- SO₄²⁻ = K₂SO₄
In conclusion, the empirical formula is the simplest formula of a compound.
Learn more about empirical formula at: brainly.com/question/1581269
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