Oregon trail would be the best answer
Answer:
3.94 L
Explanation:
From the question given above, the following data were obtained:
Mass of O₂ = 5.62 g
Volume of O₂ =?
Next, we shall determine the number of mole present in 5.62 g of O₂. This can be obtained as follow:
Mass of O₂ = 5.62 g
Molar mass of O₂ = 2 × 16 = 32 g/mol
Mole of O₂ =?
Mole = mass / molar mass
Mole of O₂ = 5.62 / 32
Mole of O₂ = 0.176 mole
Finally, we shall determine the volume of 5.62 g (i.e 0.176 mole) of O₂ at STP. This can be obtained as follow:
1 mole of O₂ occupied 22.4 L at STP.
Therefore, 0.176 mole of O₂ will occupy = 0.176 × 22.4 = 3.94 L at STP.
Thus 5.62 g (i.e 0.176 mole) of O₂ occupied 3.94 L at STP
Answer: Chlorine
Explanation: Chlorine has an atomic number of 17 and a configuration of 2, 8, 7. In the outermost shell, it has 7 seven electrons which means that it needs just one more electron to attain an octet configuration in that shell. Therefore it's can react quickly with any nearby nucleophile. Chlorine is more stable as a molecule (Cl2) because that way, it's in a covalent bond with itself and each chlorine atom in the molecule attains an octet. It's is also more stable as a Chloride ion (Cl-). Yes, Hydrogen (H) has a single electron in it's single shell and requires just one electron to attain a stable duplet configuration but it's not as reactive as the Cl because that single electron is closer to the nucleus and it's held firmly by the nuclear charge preventing it from being highly reactive. Unlike hydrogen, chlorine atom has 2 more shells shielding the outermost shell from the effect of the nuclear charge, hence, it's willing to accept electron from a donor. Oxygen need 2 more electrons to attain an octet in it's outermost shell considering it's configuration of 2,6. But in the presence of electrons, Cl would pick up electron faster than Oxygen since it requires just one. Neon on the other hand is a noble gas. It's shells are completely filled. considering it's configuration of 2,8, it has no space to accept electrons and cannot donate either. Hence, no room for reactivity.
Explanation:
Relation between temperature and activation energy according to Arrhenius equation is as follows.
k = 
where, k = rate constant
A = pre-exponential factor
= activation energy
R = gas constant
T = temperature in kelvin
Also,
= 
= (244 + 273) K = 517.15 K
= 
= (597.15 + 273) K = 597.15 K
= 6.7 
, 
= ?
R = 8.314 J/mol K
= 71.0 kJ/mol = 71000 J/mol
Putting the given values into the above formula as follows.
= 2.2123
= 9.1364
Thus, we can conclude that rate constant of this reaction is 
.
The molality of the isopropyl alcohol in the solution is 13.95 m
<h3>Assumption</h3>
- Let the mass of the solution be 100 g.
- 45.6% by mass isopropyl alcohol = 45.6 g
- Mass of solvent = 100 – 45.6 = 54.4 g
<h3>Determination of the mole </h3>
- Mass of isopropyl alcohol = 45.6 g
- Molar mass of isopropyl alcohol = 60.11 g/mol
- Mole of isopropyl alcohol =?
Mole = mass / molar mass
Mole of isopropyl alcohol = 45.6 / 60.11
Mole of isopropyl alcohol = 0.759 mole
<h3>How to determine molality </h3>
- Mole of isopropyl alcohol = 0.759 mole
- Mass of solvent = 54.4 g = 54.4 / 1000 = 0.0544 Kg
Molality = mole / mass of solvent
Molality = 0.759 / 0.0544
Molality = 13.95 m
Learn more about Molality:
brainly.com/question/4251997
