To a Saturated Aqueous Solution of Barium Carbonate Is Added

question 1

Multiple Choice

To a saturated aqueous solution of barium carbonate is added just enough sodium sulfate to achieve a maximum sulfate concentration without precipitation of barium sulfate.If no complexes form and the "salt effect" is negligible,what is the concentration of the sulfate ion in this solution? [K_sp for barium carbonate is 1.6 × 10^-9;K_sp for barium sulfate is 7.9 × 10^-11]

• A)2.8 × 10^-5 M
• B)6.7 × 10^-6 M
• C)2.0 × 10^-6 M
• D)4.0 × 10^-5 M
• E)8.9 × 10^-5 M

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Definitions:

Peak Flow

The maximum instantaneous discharge of a stream or river at a specific location and time.

Runoff

The flow of water that occurs when excess stormwater, meltwater, or other sources flows over the Earth's surface, often leading to erosion and transporting sediments.

Floodplain

Land that is level or almost level, located next to a river or stream, which undergoes infrequent or regular floods.

Meander

A winding curve or bend in a river, which occurs as the river erodes the landscape in sinuous patterns.