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Author Archives: Anonymous

Which is NOT a conjugate acid-base pair?

Which is NOT a conjugate acid-base pair?

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A saline solution contains 0.80% (w/v) NaCl. What volume is…

A saline solution contains 0.80% (w/v) NaCl. What volume is needed to deliver 4.0 g NaCl?

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A solution is prepared by mixing 450. mL water and 150. mL m…

A solution is prepared by mixing 450. mL water and 150. mL methanol. What is the concentration of methanol in % (v/v)?

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The unique Excel function to find the z-score of any value i…

The unique Excel function to find the z-score of any value is:

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What is the molarity of a solution made by dissolving 29.22…

What is the molarity of a solution made by dissolving 29.22 g NaCl in 1.50 L solution? MW NaCl = 58.44 g/mol. Show your work.

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The molar concentration of OH− is 1.0 × 10^-8 M. What is the…

The molar concentration of OH− is 1.0 × 10^-8 M. What is the pH? Show your work.

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If a dataset is highly skewed, the best single measure of “c…

If a dataset is highly skewed, the best single measure of “center” is probably:

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A solution is prepared by dissolving 6.00 g of glucose in 15…

A solution is prepared by dissolving 6.00 g of glucose in 150. mL of water (density = 1.0 g/mL). What is the concentration in % (m/m)? Show your work.

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Mode identifies the:

Mode identifies the:

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Visual representations help users interpret the ______ of a…

Visual representations help users interpret the ______ of a dataset.

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