Questions from General Chemistry


Q: Suppose 325 mL of 0.150 M NaOH is needed for

Suppose 325 mL of 0.150 M NaOH is needed for your experiment. How would you prepare this if all that is available is a 1.01 M NaOH solution?

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Q: How much water must be added to 500. mL of 0

How much water must be added to 500. mL of 0.200 M HCl to produce a 0.150 M solution? (Assume that the volumes are additive.)

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Q: During a summer research internship, you are asked to do lab

During a summer research internship, you are asked to do lab work and prepare solutions for experiments to be run on samples that will come in from the field. You need to prepare a 0.300 M NaOH soluti...

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Q: Write a chemical equation showing how each of the following species can

Write a chemical equation showing how each of the following species can behave as indicated when dissolved in water. a. HSO3- as an acid b. CO32- as a base c. H2PO4- as an acid d. C2H3O2- as a bas...

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Q: Generally only the carbonates of the Group 1 elements and the ammonium

Generally only the carbonates of the Group 1 elements and the ammonium ion are soluble in water; most other carbonates are insoluble. How many milliliters of 0.125 M sodium carbonate solution would be...

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Q: Write a chemical equation showing how each of the following species can

Write a chemical equation showing how each of the following species can behave as indicated when dissolved in water. a. O2- as a base b. NH3 as a base c. HSO4- as an acid d. HNO- as an acid

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Q: According to the Brønsted-Lowry model, an acid is a

According to the Brønsted-Lowry model, an acid is a “proton donor” and a base is a “proton acceptor.” Explain.

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Q: What happens to the hydroxide ion concentration in aqueous solutions when we

What happens to the hydroxide ion concentration in aqueous solutions when we increase the hydrogen ion concentration by adding an acid? What happens to the hydrogen ion concentration in aqueous soluti...

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Q: Write an equation showing how HCl(g) behaves as an

Write an equation showing how HCl(g) behaves as an Arrhenius acid when dissolved in water. Write an equation showing how NaOH(s) behaves as an Arrhenius base when dissolved in water.

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Q: Of the following conditions, which indicate an acidic solution?

Of the following conditions, which indicate an acidic solution? a. pH = 8.95 b. [H+] < 1.0 * 10-7 M c. pOH = 3.46 d. [OH-] = 7.11 * 10-10 M

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