Question

You are required to prepare 500 ml of a 6.00 M solution of HNO3 from a stock solution of 12.0 M. Describe in detail how you would go about preparing this solution. Clearly state the volume of stock solution used, the glassware's used and the procedure. ​

Answer 1

Answer: 250 ml of stock solution with molarity of 12.0 M is measured using a pipette and 250 ml of water is added to volumetric flask of 500 ml to make the final volume of 500 ml.

Step-by-step explanation:

According to the dilution law,

`C_1V_1=C_2V_2`

where,

`C_1` = concentration of stock solution = 12.0 M

`V_1` = volume of stock solution = ?

`C_2` = concentration of diluted solution= 6.00 M

`V_2` = volume of diluted acid solution = 500 ml

Putting in the values we get:

`12.0* V_1=6.00* 500`

`V_1=250ml`

Thus 250 ml of stock solution with molarity of 12.0 M is measured using a pipette and 250 ml of water is added to volumetric flask of 500 ml to make the final volume of 500 ml.