Answer:
Because Water is not a buffer solution and the acetic acid/acetate solution is a buffer solution. An acidic buffer is a solution of a weak acid (acetic acid) and its conjugate base pair (sodium acetate) that prevents the pH of a solution from changing drastically through the action of each component with incoming acid or base.
Answer:
Explanation:
Solving (a): P(Joe)
To get this probability, we simply add up the items in the column named Joe.
These items are:
Joe: 34 and 70
And the total is:
The overall population of the system is:
So:
Solving (a): P(Joe and North Side)
To get this probability, we simply get the intersecting element of Joe column and North Side row.
From the table, the intersecting element is:
Joe and North Side: 70
The overall population of the system is:
Firstly simplify both sides
using distributive terms
(-8)(2)+(-8)(-3w)+-5w
=-16+24w+-5w
combine like terms
-16+24w+-5w
=(24w+5w)+(-16)
=19w+-16
the answer is 19w+ -16
Answer: 3rd option: 0.23, 0.2, -0.35, -0.56
Explanation: 0.23 is 0.03 greater than 0.2 so 0.23 is first, 0.2 is 0.85 greater than -0.35, so it is the second number, and finally -0.35 is 0.21 greater than -0.56 which makes -0.35 the third number and -0.56 the last number.
Hope this helps! :)
