Determine the concentration of a 1.00 M solution of sodium chloride (NaCl) after the following changes occur. (a) Exactly one liter of the solution is mixed with 0.40 L of water.

0.714 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

According to the neutralization law,

where,

= molarity of stock  solution = 1.00 M

= volume of stock  solution = 1.00 L

= molarity of dilute  solution = ?

= volume of dilute  solution = (1.00+0.40) L = 1.40 L

The concentration of a 1.00 M solution of sodium chloride (NaCl) after exactly one liter of the solution is mixed with 0.40 L of water is 0.714 M

the answer is 0.8m.

by: nicholas

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.