Question

A laboratory bottle, containing hydrochloric acid, is labelled as 12N HCl. 20mL of 0.3N HCl can be
prepared by
1) Diluting 0.5mL of the supplied acid to 20mL
2) Adding 19.5mL of water into 0.5mL of the supplied acid so that the total volume of solution becomes
20mL
3) Diluting 0.8mL of the supplied acid to 20mL
4) Adding 19.2mL of water into 0.8mL of the supplied acid so that the total volume of solution becomes
20mL
pls help me honestly..will mrk as brainliest

Answer 1

Answer:

4) Adding 19.2mL of water into 0.8mL of the supplied acid so that the total volume of solution becomes

20mL

Answer 2

Answer:

Let us learn about the different domains of the natural environment. These are the lithosphere, hydrosphere, atmosphere and biosphere.