A weak acid has a low concentration of H+ Ions and a dilute acid is a solution where acid is dissolved in a more volume of water than that of acid.
<h2>Answer </h2>
Matter
<u>Explanation </u>
A matter has distinct properties and composition that never vary. The matter is anything which possesses mass and occupies space. The matter has different characteristics and a distribution that does not change from unit to unit. Materials which cannot be disintegrated into simpler materials. Each is made of only one kind of atom in subatomic level. For example, a chair, table, and similar everything that has mass and occupies space is matter.
Answer:
CH₃CH₂-CH₂CH₃
Explanation:
When an alkene, R-CH=CH-R reacts with H₂ in a Pt catalyst, the analogue alkane, R-CH₂-CH₂-R, is produced (Hydrogenation of alkenes via Pt/Pd catalyst)
Thus, the reaction of CH₃CH=CHCH₃ with H₂ under a platinum catalyst produce:
<h3>CH₃CH₂-CH₂CH₃</h3>
The analogue alkane
Answer:
An open system can exchange both energy and matter with its surroundings. The stovetop example would be an open system, because heat and water vapor can be lost to the air.
Explanation:
Answer: The value of 
for the weak acid is 
.
Explanation:
First, we will calculate the molarity of HA as follows.
[HA] = 
= 
= 0.015
At equilibrium,
Initial: 0.015 0 0
Change: -x +x +x
Equilibm: 0.015 - x x x
It is given that, at equilibrium
[HA] = 0.015 - x = 0.013
- x = 0.013 - 0.015
= 0.002
Now, expression for of this reaction is as follows.
![k_{a} = \frac{[A^{-}][H_{3}O^{+}]}{[HA]}](https://tex.z-dn.net/?f=k_%7Ba%7D%20%3D%20%5Cfrac%7B%5BA%5E%7B-%7D%5D%5BH_%7B3%7DO%5E%7B%2B%7D%5D%7D%7B%5BHA%5D%7D)
= ![\frac{x^{2}}{[HA]}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E%7B2%7D%7D%7B%5BHA%5D%7D)
= 
=
Thus, we can conclude that the value of for the weak acid is .
