The Sulfide Ion, S^2, Reacts with Water as a Weak

question 67

Short Answer

The sulfide ion, S^2, reacts with water as a weak base:
S^2 H₂O SH^  OH^ K  1.0
If sodium sulfide were dissolved in water to make a solution of 0.50 M, what would be the resulting concentration of OH^?

Calculate expected values and understand their significance in hypothesis testing.

Apply the chi-squared test for goodness-of-fit and for contingency tables, understanding the interpretation of the test statistic and p-value.

Comprehend the rule of 5 for expected cell frequencies in contingency tables.

Understand the concept of degrees of freedom and its calculation for chi-squared tests.

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