p = latm
t = 273.15K
R= 0.08206 L atm mol K
75.0g02
16.00 (O₂) = 4.6875mol mol
9
Ideal gas law: PV = nRT, solve for volume: V = nRT P
V =
4.6875mol 0.08206 L-atm mol. K · 273.15K
V = 105L
latm
Answer:
A system is a collection of elements or components that are organized for a common purpose. ... All of nature and the universe can be said to be a system. We've coined a word, ecosystem, for the systems on Earth that affect life systems. The term can be very useful because so many things can be described as systems.
Answer:
2e⁻ are transferred in the formation of one formula unit of product
Explanation:
The reaction is:
2Rb + Br₂ → 2RbBr
In ground state, both elements have 0 as oxidation state.
In the RbBr, Rb acts with+1 and Br with -1.
Rb increased the oxidation state → Oxidation
Br decreased the oxidation state → Reduction
Rb → Rb⁺ + 1e⁻
Br₂ + 2e⁻ → 2Br⁻
Bromine had to gained 2 electrons, to decreased the oxidation state, so
(Rb → Rb⁺ + 1e⁻ ) ₓ2 = 2Rb → 2Rb⁺ + 2e⁻
(Br₂ + 2e⁻ → 2Br⁻) ₓ1 = Br₂ + 2e⁻ → 2Br⁻
2Rb + Br₂ + 2e⁻ → 2Br⁻ + 2Rb⁺ + 2e⁻
If we cancel the electrons, we reach the balanced reaction. In conclussion, 2 e⁻
Answer:
There are no changes in primary atmospheric gases even if height is 18,000 ft.
It feels like oxygen is low at such heights but it is not. At height of 18000 ft oxygen will be same in air (21%) but due to decrease in pressure it will be difficult to breathe.
Explanation:
As we move to higher altitudes, the pressure reduces if we compare it with sea level but the important thing to note is composition of air remains the same which is 78% Nitrogen, 21% oxygen and 1% other gases (including Carbon dioxide). There are no changes in primary atmospheric gases even if height is 18,000 ft but the problem which can be faced is breathing because pressure is low at such height and it will be difficult for lungs to take oxygen in.
It feels like oxygen is low at such height but it is not. At height of 18000 oxygen will be same in air(21%) but due to decrease in pressure it will be difficult to breathe.