Which Statement,A-D,is NOT Correct? If All Are Correct,respond E $\times$ 10^-14

question 82

Multiple Choice

Which statement,A-D,is NOT correct? If all are correct,respond E.Pure water at 25°C has __________

• A)K_w = 1.0 \(\times\) 10^-14.
• B)pOH = 7.
• C)[H₃O⁺] = [OH^-].
• D)pH = 7.
• E)A-D are all correct.

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Definitions:

Z Test

A statistical test used to determine if there is a significant difference between a sample mean and a population mean, assuming data is normally distributed.

Standard Error

Standard error measures the precision of a sample mean estimate of a population mean, indicating how much the sample mean is expected to fluctuate from the true population mean.

Population Average

The mean value of a given characteristic within an entire population.

Sample Mean

The average of all observations in a sample, calculated by summing the values and dividing by the sample size.