A HCL Aqueous solution is 7% (volume by volume) 7ML HCl is present in 100ML solution?
Yes, that is correct.
To calculate the percentage of a solution by volume, we divide the volume of the solute by the volume of the solution, and then multiply by 100:
% = (volume of solute / volume of solution) x 100
In this case, we have 7 mL of HCl in 100 mL of solution, so:
% = (7 mL / 100 mL) x 100
% = 7%
Therefore, the HCL aqueous solution is 7% (volume by volume).
To calculate the volume of HCL in a 7% (v/v) HCL aqueous solution, you can use the following formula:
Volume of HCL = (percentage of HCL / 100) x total volume of solution
Let's plug in the values:
Volume of HCL = (7 / 100) x 100
Simplifying the calculation:
Volume of HCL = 0.07 x 100
Volume of HCL = 7 mL
Therefore, in a 100 mL solution with a concentration of 7% (v/v) HCL, there will be 7 mL of HCL present.