How many ml of concentrated hydrochloric acid would be required to make 1 l of a 0.2 m solution? assume that concentrated hydrochloric acid is 12.1 m

The volume of concentrated hydrochloric acid required is 16.53 mL

Explanation:

To calculate the volume of concentrated solution, we use the equation:

where,

are the molarity and volume of the concentrated solution

are the molarity and volume of diluted solution

We are given:

Conversion factor:  1 L = 1000 mL

Putting values in above equation, we get:

Hence, the volume of concentrated hydrochloric acid required is 16.53 mL

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

the answer would be a