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Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.110 M HClO(aq) with 0.110 M KOH(aq). The ionization constant for HClO is 4.0*10-8.
(a) before addition of any KOH
(b) after addition of 25.0 mL of KOH
(c) after addition of 30.0 mL of KOH
(d) after addition of 50.0 mL of KOH
(e) after addition of 60.0 mL of KOH
if 135 g of steam at 100 degrees C and 475 g of ice at 0 degrees C are combined, what is the temperature of the resultant water, assuming that no heat is lost?
A 150.0-g sample of a metal at 75.0°C is added to 150.0 g of H2O at 15.0°C. The temperature of the water rises to 17.5°C. Calculate the specific heat capacity of the metal, assuming that all the heat lost by the me..
A 31.0-g sample of water at 270. K is mixed with 51.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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A 4.70 g nugget of pure gold absorbed 285 J of heat. The initial temperature was 24.0°C. What was the final temperature.
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Size of a hydrogen spherical balloon for lifting a payload, Determine the size of a spherical balloon filled with hydrogen at 30°C and atmospheric pressure for lifting 400Kg payload
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Write the complete stepwise mechanisms for reactions below. Show all intermediate structures and all electron flow with arrows.
What are your actual experimental ratios? Give possible reasons for any observed variations from these ratios.
Consult your lecture or lab text and give a complete structuer for the 'intermediate borate ester' formed in the reduction of 2-butanone with NaBH4. Why is it necessary to add water after the reaction is complete?
Which of the acids in question #3 would be the best choice to create a buffer with pH = 7.35? If you had 250.0 mL of a 0.20 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base would be required to make the buff..
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