of is needed to titrate 20 mL of to the equivalence point.
Further Explanation:
Molarity is a concentration term that is defined as the number of moles of solute dissolved in one liter of the solution. It is denoted by M and its unit is mol/L.
The formula to calculate the molarity of the solution is as follows:
...... (1)
Rearrange equation (1) to calculate the amount of solute.
…… (2)
Firstly, the volume of is to be converted into L. The conversion factor for this is,
So the volume of is calculated as follows:
The molarity of the solution is .
The volume of the solution is .
Substitute these values in equation (2) to calculate the amount of .
The chemical equation for the reaction of nitric acid with calcium hydroxide is as follows:
According to the balanced chemical reaction, one mole of reacts with two moles of to form products.
So the amount of is twice the amount of and calculated as follows:
…… (3)
Substitute for the amount of in equation (3).
Rearrange equation (1) to calculate the volume of the solution as follows:
…… (4)
Substitute for the amount of solute and for the molarity of solution in equation (4) to calculate the volume of .
The volume is to be converted into mL. The conversion factor for this is,
So the volume of can be calculated as follows:
So the volume of is 40 mL.
Learn more:
1. Determine the given mass of solute: brainly.com/question/2847466
2. Determine the moles of water produced: brainly.com/question/1405182
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Solutions
Keywords: KOH, molarity, 20 mL, 0.20 L, concentration, concentration terms, volume, moles, molar mass, 0.04 L, 40 mL.