What Is the H₃O⁺ Concentration in 0 $\circ$ C? (K_w = 1

question 15

Multiple Choice

What is the H₃O⁺ concentration in 0.0047 M NaOH(aq) at 25 ^$\circ$ C? (K_w = 1.01 $\times$ 10^-14)

• A) 2.1 \(\times\) 10^-12 M
• B) 4.7 \(\times\) 10^-3 M
• C) 1.0 \(\times\) 10^-14 M
• D) 1.0 \(\times\) 10^-7 M
• E) 4.7 \(\times\) 10^-17 M

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Definitions:

Standard Error

A statistic that measures the dispersion of sample means around the population mean, often used to estimate the accuracy of a sample mean compared to the actual population mean.

Population Size

The total number of individuals or units in the group or area being studied.

Sampling Distribution

The likelihood distribution derived from a certain statistic using a random sample.

Standard Error

Standard error measures the dispersion or accuracy of sample statistics compared to the true population parameter, usually in mean calculations.