010 M Potassium Chromate Is Slowly Added to a Solution

question 141

Multiple Choice

0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO₃ and 0.50 M Ba(NO₃) ₂.What is the Ag⁺ concentration when BaCrO₄ just starts to precipitate? The K_sp for Ag₂CrO₄ and BaCrO₄ are 1.1 × 10^-12 and 1.2 × 10^-10,respectively.

• A)6)5 × 10^-5 M
• B)1)3 × 10^-4 M
• C)3)2 × 10^-4 M
• D)6)8 × 10^-2 M

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Definitions:

Bias

A systematic error in the collection, analysis, interpretation, or review of data that can lead to conclusions that are systematically different from the truth.

Probability Basis

The foundational likelihood or chance that a specific event will occur.

Statistical Testing

A methodological process used in statistics to determine the significance of data relative to a hypothesis.

Treatment Groups

In clinical trials, groups of participants receiving the intervention or treatment being studied, as opposed to control groups.