How to prepare 250.00 ml of approximately 1.0 m hcl solution from the 2.5 m hcl solutio?

Add 150 ml of water to 100 ml of 2.5 M stock solution.

Explanation: According to the neutralization law,

where,

= molarity of stock solution = 2.5 M

= volume of stock solution = ?

= molarity of desired solution = 1.0 M

= volume of desired solution = 250 ml

Now put all the given values in the above law, we get the volume of stock solution.

Therefore, 100 ml of 2.5 M of stock solution is taken and 150 ml of water is added to make the volume to 250 ml.

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.