What Is the PH of a Solution Containing 0

question 126

Multiple Choice

What is the pH of a solution containing 0.30 M lactic acid and 0.50 M of lactate ion (K_a for lactic acid  1.38  10^4) ?

• A)9.92
• B)10.36
• C)3.86
• D)4.08
• E)3.64

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Definitions:

John Maynard Keynes

A British economist whose theories, known as Keynesian economics, had a major impact on modern economic and political theory as well as on fiscal policies of governments.

Supply Of Money

The total amount of money in circulation or in existence in a country.

Checking Deposits

Deposits in a bank account that can be withdrawn at any time without prior notice, typically used for day-to-day expenses.

Reserve Ratio

The percentage of deposits that banking authorities mandate a bank to keep as reserves, prohibiting them from being loaned out.