# Problem: A certain weak acid, HA, with a  Ka value of 5.61 × 10 −6, is titrated with NaOH.A solution is made by titrating 7.00 mmol (millimoles) of HA and 1.00 mmol of the strong base. What is the resulting pH?Express the pH numerically to two decimal places.

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###### Problem Details

A certain weak acid, HA, with a  Ka value of 5.61 × 10 −6, is titrated with NaOH.

A solution is made by titrating 7.00 mmol (millimoles) of HA and 1.00 mmol of the strong base. What is the resulting pH?

Express the pH numerically to two decimal places.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Weak Acid Strong Base Titrations concept. You can view video lessons to learn Weak Acid Strong Base Titrations. Or if you need more Weak Acid Strong Base Titrations practice, you can also practice Weak Acid Strong Base Titrations practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofA certain weak acid, HA, with a  Ka value of 5.61 × 10 −6, i...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 6 minutes and 1 second to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor N/A's class at Ryerson University.