Questions from General Chemistry


Q: A 500.0-mL sample of 0.200 M

A 500.0-mL sample of 0.200 M sodium phosphate is mixed with 400.0 mL of 0.289 M barium chloride. What is the mass of the solid produced?

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Q: A 450.0-mL sample of a 0.257

A 450.0-mL sample of a 0.257 M solution of silver nitrate is mixed with 400.0 mL of 0.200 M calcium chloride. What is the concentration of Cl- in solution after the reaction is complete?

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Q: A 50.00-mL sample of aqueous Ca(OH

A 50.00-mL sample of aqueous Ca(OH)2 requires 34.66 mL of a 0.944 M nitric acid for neutralization. Calculate the concentration (molarity) of the original solution of calcium hydroxide.

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Q: When organic compounds containing sulfur are burned, sulfur dioxide is produced

When organic compounds containing sulfur are burned, sulfur dioxide is produced. The amount of SO2 formed can be determined by the reaction with hydrogen peroxide: H2O2(aq) + SO2(g)...

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Q: Acetate ion, C2H3O2-, has a stronger affinity for protons than

Acetate ion, C2H3O2-, has a stronger affinity for protons than does water. Therefore, when dissolved in water, acetate ion behaves as a(n) .

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Q: Draw the structure of the carboxyl group, -COOH. Show

Draw the structure of the carboxyl group, -COOH. Show how a molecule containing the carboxyl group behaves as an acid when dissolved in water.

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Q: Because of , even pure water contains measurable quantities of H+

Because of , even pure water contains measurable quantities of H+ and OH-.

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Q: The number of in the logarithm of a number is equal to

The number of in the logarithm of a number is equal to the number of significant figures in the number.

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Q: A solution with pH = 9 has a (higher/lower

A solution with pH = 9 has a (higher/lower) hydrogen ion concentration than a solution with pOH = 9.

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Q: A 0.20 M HCl solution contains M hydrogen ion and

A 0.20 M HCl solution contains M hydrogen ion and M chloride ion concentrations.

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