Chemistry

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Calculations involving Strong Acids and Bases Worksheet 

Finding  H3O+ (aq) ) from strong acid concentrations and OH- (aq) from strong base concentrations

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Finding  H3O+ (aq)  and OH- (aq) using Kw. 1. Calculate the total ion concentration in a solution of 2.0 M nitric acid.

2. The autoionization of water is endothermic. If the temperature of water is increased, what happens to the concentration of hydronium ion, hydroxide ion, and Kw?

3. At higher temperature, how will the concentration of hydronium ion and hydroxide ion compare to each other?

4. At 10oC, Kw = 2.9 x 10-15. Calculate [H3O+] and [OH-] in water at this temperature.

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Chemistry

Name: __________________________

5. What is the [H3O+] and [OH-] in 0.50 M HCl? Justify that the solution is acidic.

6. Calculate the [H3O+] and [OH-] in 0.15 M HClO4. Justify that this solution is acidic.

7. Calculate the [H3O+] and [OH-] in a 7.115 x 10-1 M magnesium hydroxide solution.

8. A student dissolved 1.42 g of NaOH in 250. mL of solution. Calculate the resulting [H3O+] and [OH-]. Justify that this solution is basic.

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