Answer:
The answer is 1.778*10^-9
Explanation:
Using the formula
pH = -log[H^+]
Since the pH of the solution has been given to be 8.75,
Therefore,
8.75= -log [H^+]
Let's take H^+ to be x
8.75= -log x
Let's look for x, since the log is in base 10
X = 10^-8.75
X = 1.778 * 10^ -9
Therefore, H^+ =1.778 *10^-9
I’m not sure but i think blue
One mol of KCl (potassium chloride) is 74.5 gram (molar mass is 74.5 gram/mol).
<u>First, let's calculate the total number of moles in this solution:</u>
n = C * V = 2 Mol/L * 3 L = 6 mol
<u>Then we convert to gram</u>
1 mol ==> 74.5 gram
6 mol ==> 74.5 * 6 = 447 gram of KCl
To prepare 3 liters of 2M KCl solution, you need to dissolve 447grams of KCl in 3 liters of distilled water.
Fish will reproduce both ways
The answer is D) one unit of a balanced chemical equation