What is the required molarity of a ba(oh)₂ solution to prepare a 1.0 m oh⁻ solution? m?

The molarity of the solution of barium hydroxide is 0.5 mol/L.

Explanation:

Given , concentration of hydroxide ion =

1.0 M of hydroxide ion means that 1 mole of hydroxide ion is present in 1 L solution.

According to reaction 1 mole of barium hydroxide gives 2 moles of hydroxide ions.

Then, 1 mole of hydroxide ion  will be given by:

of barium hydroxide

Since, there are 1 mole of hydroxide ions present 1 L of water and 0.5 moles of barium hydroxide in 1 L.

So, the molarity of the solution of barium hydroxide is 0.5 mol/L.

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.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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