What is the volume of 2 mol of chlorine gas at STP?
Answers
Answer:
Volume of 2 mol of chlorine gas at STP is 44.8 L
Explanation:
Let us assume chlorine gas behaves ideally.
According to law of ideal gas- PV=nRT
where P is pressure of gas, V is volume of gas, n is number of moles of gas, R is gas constant and T is temperature in Kelvin.
At STP, P is 1 atm and T is 273 K
Here n=2 and R=0.082 L.atm/mol.K
So
Hence volume of chlorine gas at STP is 44.8 L
The answer is 44.8L Cl2
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The Bessemer process created strong, lightweight (1 point)steel. oil. iron. coal.
A hydrogen atom cannot emit an alpha particle true false
B)absorbs harmful radiation.
C)helps clouds form.
D)causes rain to fall.
2.
A. a
B. b
C. c
D. d
Answers
Answer:
B
Explanation:
Final answer:
Ozone in the Earth's atmosphere is crucial because it absorbs most of the sun's harmful UV radiation, protecting living beings from potential health risks. The correct answer is option B.
Explanation:
The ozone in Earth's atmosphere is primarily important because it absorbs harmful radiation. More specifically, it absorbs the majority of the sun's ultraviolet (UV) radiation, which can cause a variety of health issues like skin cancer and cataracts in humans and can also be detrimental to certain types of plant and marine life. Without the protective layer of ozone, these harmful UV rays would reach Earth's surface in much larger amounts.
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b. They have at least one carbon to carbon double bond.
c. They have one or more carbon to carbon triple bonds.
d. They contain only single bonds.
Answers
The hydrocarbons which only contain single bonds between the carbon atoms are referred as saturated hydrocarbons. These hydrocarbons have carbon atoms bonded by many hydrogen atoms making it saturated. These are also the simplest class of hydrocardons.
Answers
Answer:
Molarity is 13,4M
Explanation:
As mole fraction of chloroform is 0,203; mole fraction of acetone will be 1-0,203=0,797
That means that per 100 moles you have 20,3 moles of chloroform and 79,7 moles of acetone.
Using molar mass and density it is possible to know the volume these moles occupy, thus:
Chloroform: 20,3 moles××
= 1637mL= 1,637L
Acetone: 79,7 moles××
= 5852mL = 5,852L
That means that total volume is 1,637L + 5,852L = 7,489L
As moles are 100, molarity is:
100mol / 7,489L = 13,4M
I hope it helps!
Final answer:
To determine the molarity of the solution, calculate the number of moles of each compound in the solution, and then divide the total moles by the total volume of the solution. Ensure all units are in the appropriate metric system and take into consideration potential effects of molecular interactions on the total volume.
Explanation:
The first step to calculate the molarity of the solution of chloroform (CHCl3) and acetone (C3H6O) is to determine the number of moles of each compound in the solution. The mole fraction is given as 0.203 for chloroform, therefore the mole fraction for acetone will be 0.797 (since the total mole fraction in a solution is equal to 1).
Next, we calculate the mass of each compound with the known densities. Upon performing these calculations, we then utilise the definition of molarity, which is moles of solute per liter of solution. This can be calculated by knowing the total moles and total volume of the solution. Note that we'd convert all units to the appropriate metric system before carrying out these calculations (density in g/mL, molar mass in g/mol, etc.).
It is also important to consider that the mass and volume of each solution component might not be directly additive due to potential molecular interactions between acetone and chloroform.
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eight
four
six
Answers
The answer is: four.
For example compound carbon dioxide (CO₂):
Electron configuration of carbon: ₆C 1s² 2s² 2p².
Electron configuration of oxygen: ₈O 1s² 2s² 2p⁴.
Carbon atom is sp2 hybridized, it has three sp2 orbitals and one p orbital, they form four bonds.
Oxygen has two p orbitals, they form two bonds (one sigma and one pi bond).
p orbitals from carbon and oxygen overlap and form pi bond.
be different about their atoms? (4 points)
HELP ASAP
Answers
On the periodic table, argon has an average atomic weight of 39.948 amu. This number is really near 40. This suggests that Ar-40 is the isotope of argon (Ar) that is most prevalent in the natural world.
What characteristics do argon-36, argon-38, and argon-40 share?
If all three argon atoms are neutral, they would each contain 18 protons and 18 electrons. In comparison to one another, the three isotopes will each have a distinct number of neutrons (18, 20, and 22 neutrons respectively).
Why is potassium a 39 positioned before argon, atomic number 40, in the current periodic table?
Atomic number, not atomic mass, is used to categorise the elements. As the atomic number of argon (18) is less than that of potassium (19)
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Answers
Hope this helped and have a nice day : )