Answer: pH of a 0.500 M 
solution is 1.82
Explanation:
cM 0 0
So dissociation constant will be:
Give c= 0.500 M and 
= ?
Putting in the values we get:
![[H^+]=c\times \alpha](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3Dc%5Ctimes%20%5Calpha)
![[H^+]=0.500\times 0.030=0.015](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D0.500%5Ctimes%200.030%3D0.015)
Also ![pH=-log[H^+]](https://tex.z-dn.net/?f=pH%3D-log%5BH%5E%2B%5D)
![pH=-log[0.015]=1.82](https://tex.z-dn.net/?f=pH%3D-log%5B0.015%5D%3D1.82)
Thus pH of a 0.500 M solution is 1.82
Answer:
The glowing splint test is a test for an oxidizing gas, such as oxygen. In this test, a splint is lit, allowed to burn for a few seconds, then blown out by mouth or by shaking. Whilst the ember at the tip is still glowing hot, the splint is introduced to the gas sample that has been trapped in a vessel. Oxygen supports combustion so a good method of testing for oxygen is to take a glowing splint and place it in a sample of gas, if it re-ignites the gas is oxygen. This is a simple but effective test for oxygen.
Answer:
<h2>The answer is 2500 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration is given by
<h3>Force = mass × acceleration</h3>
From the question
mass of car = 25 kg
acceleration = 100 m/s²
The force is
Force = 25 × 100
We have the final answer as
<h3>2500 N</h3>
Hope this helps you
Answer:
the water is diffrent because it is now a gas not a liquid
Explanation:
