of
is present in the dilute solution.
Further Explanation:
The proportion of substance in the mixture is called concentration. The most commonly used concentration terms are as follows:
1. Molarity (M)
2. Molality (m)
3. Mole fraction (X)
4. Parts per million (ppm)
5. Mass percent ((w/w) %)
6. Volume percent ((v/v) %)
Molarity is a concentration term that is defined as the number of moles of solute dissolved in one litre of the solution. It is denoted by M and its unit is mol/L.
The formula to calculate the molarity of
solution is as follows:
…… (1)
Rearrange equation (1) to calculate the moles of
.
…… (2)
The volume of
solution is to be converted into L. The conversion factor for this is,
So the volume of
solution is calculated as follows:
![\begin{aligned}{\text{Volume of HN}}{{\text{O}}_{\text{3}}}\;{\text{solution}}&=\left( {{\text{25 mL}}}\right)\left({\frac{{{{10}^{ - 3}}\;{\text{L}}}}{{{\text{1 mL}}}}} \right)\\&=0.02{\text{5 L}}\\\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%7B%5Ctext%7BVolume%20of%20HN%7D%7D%7B%7B%5Ctext%7BO%7D%7D_%7B%5Ctext%7B3%7D%7D%7D%5C%3B%7B%5Ctext%7Bsolution%7D%7D%26%3D%5Cleft%28%20%7B%7B%5Ctext%7B25%20mL%7D%7D%7D%5Cright%29%5Cleft%28%7B%5Cfrac%7B%7B%7B%7B10%7D%5E%7B%20-%203%7D%7D%5C%3B%7B%5Ctext%7BL%7D%7D%7D%7D%7B%7B%7B%5Ctext%7B1%20mL%7D%7D%7D%7D%7D%20%5Cright%29%5C%5C%26%3D0.02%7B%5Ctext%7B5%20L%7D%7D%5C%5C%5Cend%7Baligned%7D)
The molarity of
solution is 6M.
The volume of
solution is 0.025 L.
Substitute these values in equation (2).
![\begin{aligned}{\text{Moles}}\;{\text{of}}\;{\text{HN}}{{\text{O}}_3}&=\left( {{\text{6 M}}} \right)\left( {0.02{\text{5 L}}} \right)\\&=0.1{\text{5 mol}} \\ \end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%7B%5Ctext%7BMoles%7D%7D%5C%3B%7B%5Ctext%7Bof%7D%7D%5C%3B%7B%5Ctext%7BHN%7D%7D%7B%7B%5Ctext%7BO%7D%7D_3%7D%26%3D%5Cleft%28%20%7B%7B%5Ctext%7B6%20M%7D%7D%7D%20%5Cright%29%5Cleft%28%20%7B0.02%7B%5Ctext%7B5%20L%7D%7D%7D%20%5Cright%29%5C%5C%26%3D0.1%7B%5Ctext%7B5%20mol%7D%7D%20%5C%5C%20%5Cend%7Baligned%7D)
The number of moles of
in 25 mL solution is 0.15 mol.
Dilution is the conversion of a concentrated solution into a dilute solution with the addition of extra solvent but the amount of solute is unaltered. The change that arises is an increase in the volume of the solution.
In the given solution, dilution is done and the concentration of solution decreases during the process. But the number of moles of solute remains unaltered. Therefore the number of
in the dilute solution is also 0.15 mol.
Learn more:
1. Calculation of volume of gas: brainly.com/question/3636135
2. Determine the moles of water produced: brainly.com/question/1405182
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Concentration terms
Keywords: molarity, HNO3, dilution, moles of HNO3, volume, solution, 0.15 mol, concentration, 25 mL, 6 M, concentrated solution, dilute solution.