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An unknown volume of water at 18.2 degrees C is added to 26.1 mL of water at 35 degrees C. If the final temperature is 23.5 deg C, what was the unknown volume? (no heat was lost to the surroundings, d of water is 1 g/mL)
How much heat energy, in kilojoules, is required to convert 47.0 g of ice at -18.0 degrees C to water at 25.0 degrees C ?
If some air remained in your syringe along with the natural gas sample, would that make your result greater or less than the actual molar mass of natural gas? is the same true for your sample of unknown gas?
What is the contribution to the internal energy from translations for an ideal monatomic gas confined to move on a surface?
Calculate the heat lost by the hot water, Calculate the heat gained by the cold water, Calculate the calorimeter constant, using the delta T of the cold water.
Calculate ΔHo fusion and ΔSo fusion for the substance If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K. ?
If 1.0 mL of vinegar needs 22.5 mL of 0.195 M NaOH to reach the equivalence point in the titration, what is the molarity of the original vinegar solution?
What is the coordination number for each of the following complexes? A. [Co(NH3)4(H2O)2]^3+ B. [Cr(EDTA)]^-
Now if your lab partner needed 7.030 x 1019 molecules of Sodium cyanide (NaCN), how many milligrams would you need to weigh out?
A circular storage tank in the san Ardo california oil field water treatment facility is 50 yards in diameter. Estimate how many barrels of fluid this tank could hold
what major obstacles personal professional or acdemic will you need to overcome in order to be sucessful in school.
The absorbance at 595 nm was 0.78 and,according to a standard curve, corresponds to 0.015 mg of proteinon the x axis. What is the protein concentration of the original solution?
Calculate the mass of oxygen (in mg) dissolved in a 5.00 L bucket of water exposed to a pressure of 1.13 atm of air. Assume the mole fraction of oxygen in air to be 0.21
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