Question

Which best describes a stock solution that is used in a dilution?

a concentrated solution
a solution present in the largest quantity
a dilute solution
a solution present in the smallest quantity

Answer 1

Answer: a concentrated solution

Explanation: A stock solution is a concentrated solution which is used to prepare solutions of lower concentrations by diluting it with addition of water.

But on diluting the number of moles remain same and thus we can use molarity equation.

`C_1V_1(stock)=C_2V_2` (to be prepared)

where,

`C_1` =concentration of stock solution

`V_1` = volume of stock solution

`C_2` = concentration of solution to be prepared

`V_2` = volume of solution to be prepared

Answer 2

The answer is a concentrated solution. Concentration is the wealth of a constituent isolated by the aggregate volume of a blend. A few sorts of scientific portrayal can be recognized: mass fixation, molar focus, number fixation, and volume focus.