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Suppose a 500.mL flask is filled with 0.30mol of Cl2, 0.40mol of CHCl3 and 1.5mol of CCl4. The following reaction becomes possible:+Cl2gCHCl3g +HClgCCl4gThe equilibrium constant K for this reaction is 8.88 at the temperature of the flask.Calculate the equilibrium molarity of HCl. Round your answer to two decimal places.

Question

Suppose a 500.mL flask is filled with 0.30mol of Cl2, 0.40mol of CHCl3 and 1.5mol of CCl4. The following reaction becomes possible:+Cl2gCHCl3g +HClgCCl4gThe equilibrium constant K for this reaction is 8.88 at the temperature of the flask.Calculate the equilibrium molarity of HCl. Round your answer to two decimal places.

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Solution

The problem is asking for the equilibrium molarity of HCl. To solve this, we need to use the equilibrium constant (K) and the initial molarities of the reactants and products.

The reaction is: Cl2 + CHCl3 ⇌ CCl4 + HCl

The equilibrium constant expression for this reaction is: K = [CCl4][HCl] / ([Cl2][CHCl3])

We are given that K = 8.88, [Cl2] = 0.30 mol / 0.500 L = 0.60 M, [CHCl3] = 0.40 mol / 0.500 L = 0.80 M, and [CCl4] = 1.5 mol / 0.500 L = 3.0 M.

We are solving for [HCl], so we rearrange the equilibrium constant expression to solve for [HCl]:

[HCl] = K * ([Cl2][CHCl3]) / [CCl4]

Substitute the given values into the equation:

[HCl] = 8.88 * (0.60 M * 0.80 M) / 3.0 M

[HCl] = 1.42 M

So, the equilibrium molarity of HCl is 1.42 M.

This problem has been solved

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