Final equilibrium temperature of the tin-water mixture
225 kg sample of tin initially at 97.5 is dropped into .115 kg of water initially at 10.0°C. If the specific heat capacity of tin is 230 J/kg x °C, what is the final equilibrium temperature of the tin-water mixture?
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25 mL of 0.100 M lactic acid ( Ka= 1.4 x10^-4) is titrated with 0.097 M KOH. What is the pH of the solution before titration?
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If 50.00 mL of 1.00 M HC2H3O2 (Ka= 1.8 x 10^-5) is titrated with 1.00 M NaOH. what is the pH of the solution after the following volumes of NaOH have been added.
As viewed by a bystander, a rider in a "barrel of fun" at a carnival finds herself stuck with her back to the wall. What is the free body diagram?
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What is relative amount of electric energy that will need to be used in both cases to cool a can of water (330 ml) from room temperature to +8 oC? Assume ideal operation of both systems.
A metal bar 1.6m long at room temperature,21c the bar is put into an oven and heated to a temperature of 84c.It is then measured and found to be 1.7mm longer. What is the coefficient of linear expansion of this material?
What is the molality of ethanol in a solution prepared by dissolving 5.00 mL of ethanol (C2H5OH, of density 0.800 grams/mL) in 25.0 mL of water (H2O, of density 1.000 grams/mL)?
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