<u>Answer:</u>
<u>For 1:</u> The molarity of in this solution is 0.0592 M
<u>For 2:</u> The new molarity of in this solution is
<u>Explanation:</u>
To calculate the molarity of solution, we use the equation:
Given mass of KOH = 1.66 g
Molar mass of KOH = 56.1 g/mol
Volume of solution = 500.0 mL
Putting values in above equation, we get:
1 mole of KOH produces 1 mole of potassium ions and 1 mole of hydroxide ions
So, molarity of
Hence, the molarity of in this solution is 0.0592 M
To calculate the molarity of the diluted solution, we use the equation:
where,
are the molarity and volume of the concentrated KOH solution having
are the molarity and volume of diluted KOH solution having
We are given:
Putting values in above equation, we get:
Hence, the new molarity of in this solution is