Explanation:
The given data is as follows.
= 286 kJ =
= 286000 J
,
Hence, formula to calculate entropy change of the reaction is as follows.
=
=
= 163.5 J/K
Therefore, formula to calculate electric work energy required is as follows.
=
= 237.277 kJ
Thus, we can conclude that the electrical work required for given situation is 237.277 kJ.
The given question is incomplete. The complete question is:
A chemist prepares a solution of barium chloride by measuring out 110 g of barium chloride into a 440 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in mole per liter of the chemist's barium chloride solution. Round your answer to 3 significant digits.
Answer: Concentration of the chemist's barium chloride solution is 1.20 mol/L
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.
where,
n = moles of solute
= volume of solution in L
moles of (solute) =
Now put all the given values in the formula of molality, we get
Therefore, the molarity of solution is 1.20 mol/L