Answer:
Ka = 4.9 x 10ˉ⁴
Explanation:
HOAc ⇄ H⁺ + OAcˉ
Ka = [H⁺][OAcˉ]/[HOAc]
Given pH = 2.58 => [H⁺] = [OAcˉ] = 10ˉ²∙⁵⁸ = 2.63 x 10ˉ³M
Ka = (2.63 x 10ˉ³)²/(0.0142) = 4.9 x 10ˉ⁴
The reaction of sodium hypochlorite (NaOCl, bleach) with iodide ion (sodium iodide) leads to the formation of electrophile. The I⁺ ion formed in this reaction is a strong electrophile that reacts quickly in an electrophilic aromatic substitution reaction.
NaOCl + NaI = I⁺
Answer: Clouds hold rain, rain is made by moisture that gathers up to create a cloud.
Explanation: It's kind of like whenever you boil a pot of water, you see smoke go up.. it's like that.
Answer:
Vapor pressure of the solution is 22.9 torr at 25°C
Explanation:
When a non volatile solute is added to a pure solvent, the vapour pressure of the mixture decrease regard to the pure solvent following the equation (Raoult's law):
Where vapour pressure of the pure solvent (Water) is 23.8torr at 25°C.
Mole fraction of water is the ratio between moles of water and total moles in solution. The solution has a mole fraction of water of:
Replacing in Raoult's law:
<h3>Vapor pressure of the solution is 22.9 torr at 25°C</h3>
Na-24 and Na-23 have the same number of atoms=11, different neutrons(13 and 12),different mass number(24 and 23)
<h3>Further explanation
</h3>
The elements in nature have several types of isotopes
Isotopes have the same number of protons and having a different number of neutrons.
So Isotopes are elements that have the same Atomic Number (Proton)
number of atoms = 11
mass number = 23
number of neutrons=23-11=12
number of atoms = 11
mass number = 24
number of neutrons=24-11=13