Answer:
Xe = 0.431 mole
Kr = 0.569 mole
Explanation:
We are asked to calculate the mole fraction of each gas
Let's start from, what is mole fraction?
Mole fraction is the ratio of the number of moles of a substance to the total number of moles of all substance present in the mixture
In this question, we are provided with
Xe - 43.6g
Let's find the number of mole
n = m/Mm
n - number of mole
m - number of mass in grams
Mm - number of molar mass
The molar mass of Xe according to the periodic table is 131.293u
m - is given to be 43.6g
n = 43.6g / 131.293g/mol
n = 0.332mole
Secondly,
Kr - 36.8g
The molar mass of Kr is 83.798
m = 36.8
Using the same formula we used above to find mole
n = 36.8g / 83.798g/mol
n = 0.439mole
Let's calculate the total number of mole in the mixture
Total number of mole = 0.332 + 0.439
= 0.771 mole
To find each mole of each gas in the mixture, using this formula
Mole fraction of a gas = mole of gas A / total mole of the mixture
In Xe = 0.332 / 0.771
= 0.431 mole of Xe in the mixture of the gas
For Kr = 0.439 / 0.771
= 0.569 mole of Kr in the total mixture
B) Northern Florida would need snow for at least a week for this to be true.
C) The climate of northern Florida would be unaffected since it is already warm in Florida.
D) Jason does not realize that Southern Florida would also need to receive snow to make this true.
Jason is mistaken in equating a one-time weather event, such as snow in northern Florida, with climate change. Weather is short-term and local, whereas climate represents long-term regional patterns. An isolated weather occurrence does not contradict the extensive evidence of global climate change.
Jason has confused a singular weather event with the overall climate in his reasoning. The correct statement that explains what is wrong with Jason's reasoning is:
A) Jason has confused the weather for one day with the climate of a region.
Weather refers to short-term atmospheric conditions in a specific area, such as a snowy day in northern Florida. Climate, on the other hand, is the average weather in a region over a long period, typically taken over 30 years. A single instance of snow in a typically warm region does not refute the evidence of global climate change. It's the long-term trends and patterns, not isolated incidents, that indicate climate change. Therefore, the occurrence of snow in northern Florida is simply an irregular weather event and not an indicator of the overall climate or a disproof of global climate change.
#SPJ2
Answer: C
Explanation:
PLEASEEEEE CAN SOMEONE HELP MEEE??? (iI have TWO questions PLSPLSPLSPSLPLSPLSPLSP)
3.) What happened to Patroclus at the end of yesterday's reading?
He won the battle.
He went to Mt. Olympus to talk to Zeus.
He died.
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4.Who was Agamemnon trying to persuade to come fight with him again?
Patroclus
Achilles
Odysseus
Hector
Noble gases/inert gases are used in various fields including lamp fillers, metal welding or coolers
Further explanation
Noble gas (group 8A in the periodic system the element) is an element that is not reactive (stable)/inert
Its stability is caused by:
Some noble gases such as Ar, Kr are obtained from multilevel distillation
The use of noble gases include:
the periodic table
electron affinity
ionic compounds:Al₂X₃, XCO₃
Keywords : inert gas, application,electron configuration
Show all work.
Answer:
See below.
Explanation:
The mass of octane in the sample of gasoline is 0.02851 * 482.6 = 13.759 g of octane.
The balanced equation is:
2C8H18(l) + 25O2(g) ----> 16CO2(g) + 18H2O(g)
From the equation, using atomic masses:
228.29 g of octane forms 704 g of CO2 and 324.3 g of H2O
So the mass of CO2 formed from the combustion of 13.759 g of octane = (704 * 13.759) / 228.29
= 42.43 g of CO2.
Amount of water = 324.3 * 13.759) / 228.29
= 19.55 g of H2O.
The change in the arrangement of particles as heat energy and temperature increase because of the increase in the kinetic energy of the particles.
Kinetic energy of any atom is calculated as:
K.E. = 1/2(mv²), where
v = velocity and m = mass
So, when we apply heat energy or increase the temperature of any system then the energy of the constitute particles is also increases which results in the increase of the average kinetic energy of the particle. Due to this kinetic energy particle will move with high velocity and disturbs the arrangement of the system.
Hence, due to increase in average kinetic energy, arrangement of the particles changes.
To know more about kinetic energy, visit the below link:
Answer:
there is more energy added as heat rises
Explanation: