Calculate final temperature when ice placed in styrofoam cup
Calculate the final temperature when a 25.5 gram sample of ice at 0oC is placed into a styrofoam cup containing 116 grams of water at 71.9 oC. Assume that there is no loss or gain of heat from the surroundings.
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65.50 mL of 0.161 M HF is titrated with 0.1200 M NaOH. How many mL of the base are required to reach the equivalence point? (Ka for HF is 6.8 x 10-4)
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Calculate the final temperature when a 25.5 gram sample of ice at 0oC is placed into a styrofoam cup containing 116 grams of water at 71.9 oC.
What horsepower is added to water to pump it vertically through a 200-ft-long, 1.0-in.-diameter drawn tubing at a rate of 0.060 ft3 s if the pressures at the inlet and outlet are the same? 8.62 Water flows from a lake as is shown in Fig. P8.
Assume you prepare the sample corresponding to line 1 in the first table of the Calculations section. If the measured concentration of I3- turns out to be 1.30x10-5 M, what is the equilibrium coefficient?
What volume of 0.240 M CaCl2 must be added to 335 mL of 0.189 M KCl to produce a solution with a concentration of 0.245 M Cl-? Assume that the solution volumes are additive.
Will a battery last longer if I charge it with a high current for a short time, or is it better to charge the battery with a low current for a long time to get the most energy? Our project will answer this question. We also hope to propose s
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