= 1.72 × 10⁻³HA + H₂O ⇌ H₃O⁺ + A⁻
![K_{a} = \frac{[H_{3} O^{+}][ A^{-}] }{[HA]}](https://tex.z-dn.net/?f=%20K_%7Ba%7D%20%3D%20%20%5Cfrac%7B%5BH_%7B3%7D%20O%5E%7B%2B%7D%5D%5B%20A%5E%7B-%7D%5D%20%7D%7B%5BHA%5D%7D)
[HA] = 0.0116 mol/L
pH = 2.35
[H₃O⁺] =
![10^{-pH}](https://tex.z-dn.net/?f=10%5E%7B-pH%7D%20)
mol/L=
![10^{-2.35}](https://tex.z-dn.net/?f=10%5E%7B-2.35%7D%20)
mol/L = 4.47 × 10⁻³ mol/L
[A⁻] = [H₃O⁺] = 4.47 × 10⁻³ mol/L
![K_{a} = \frac{[H_{3} O^{+}][ A^{-}] }{[HA]}](https://tex.z-dn.net/?f=%20K_%7Ba%7D%20%3D%20%20%5Cfrac%7B%5BH_%7B3%7D%20O%5E%7B%2B%7D%5D%5B%20A%5E%7B-%7D%5D%20%7D%7B%5BHA%5D%7D)
=
![\frac{4.47 \times 10^{-3} \times 4.47 \times 10^{-3}}{ 0.0116}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4.47%20%5Ctimes%20%2010%5E%7B-3%7D%20%5Ctimes%204.47%20%5Ctimes%20%2010%5E%7B-3%7D%7D%7B%200.0116%7D%20)
= 1.72 × 10⁻³
The answer to this question will be C
Increasing the temperature will cause the particles to move more often with more energy. They will therefore collide faster with greater energy
Answer:
false
true
true
Explanation:
false - changing the hypothesis to meet your needs is not a good researcher
true - when you can further analyze and explain then you have a successful experiment even if it's not what you expected
true - successful experiments do not end there. they can lead to more in depth questions.