Below is a representation of an aqueous solution of a weak acid HA at equilibrium. (Each circle represents 1.0 ×10-3 mol of atoms, and the volume of the box is 1.0 L. Solvent water molecules are not shown for clarity.) 
What is the pH of the solution?
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Average Tax Rate
The portion of total income that is paid as taxes, calculated by dividing the total amount of taxes paid by the total income.
Tax Liability
The total amount of tax that an individual or business owes to the government, based on their income or revenue.
Marginal Tax Rate
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