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Calculate the hydroxide ion concentration of a solution

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Assignment

1. If 5.40 kcal of heat is added to 1.00 kg of water at 100oC, how much steam at 100oC is produced? Show all calculations leading to ananswer.

2. The Kw of water varies with temperature. Calculate the pH of water at 46o C with a Kw=1.219 x 10-14. Show all calculations leading to an answer.

3. Calculate the hydroxide ion concentration of a solution with pH = 3.25. Show all calculations leading to ananswer.

4. The following unbalanced equation describes the reaction that can occur when lead (II) sulfide reacts with oxygen gas to produce lead (II) oxide and sulfur dioxide gas:

PbS + O2 PbO + SO2

Balance the equation and describe in words the electron transfer(s) that takes place.

5. What type of radiation is emitted when chromium-51 decays into manganese-51? Show the nuclear equation that leads you to thisanswer.

6. A radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. What was the identity of the original nucleus? Show the nuclear equation that leads you to this answer.

Reference no: EM131434144

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