To what volume (in milliliters) should you dilute 100.0 ml of a 5.50 m solution of cacl2 solution to obtain a 0.950 m solution of cacl2?

Dilution law is given as:

   (1)

where, = molarity of initial concentrated solution.

= volume of initial concentrated solution.

= molarity of final diluted solution.

tex]V_{2}[/tex] = volume of final diluted solution.

Volume of initial concentrated solution of = 100.0 mL

Molarity of initial concentrated solution of = 5.50 M

Volume of final diluted solution of = 0.950 M

Put the values in formula (1),

Hence, final diluted volume of the solution is  .

let that person have a turn to speak : )

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.