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You have been given a 0.525 L canister containing a gas. The pressure gauge on the canister reads 701 mmHg, and the temperature gauge reads 315 K. The piston on the canister is pushed to compress the gas to 0.282 L, thereby increasing the pressure to 944 mmHg. What is the new temperature in Celsius?
Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C, and no heat transfer between the cold pack and the environment
Integrated Rate Law
Potassium iodide is added to common table salt, sodium chloride, to help prevent the enlargement of the thyroid gland, a condition known as goiter.
A hydrofluoric acid solution has a density of 1.29 g/ml. It contains 480.0 g per liter. Calculate %, M and m
The zinc within a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can get to the zinc). The reaction between the acid and the zinc is
The permanganate ion is a common oxidizing agent. What is the reduction potential at 25C of MnO4-, H+/ Mn2+ couple at pH=6.00
What is nitrogen balance- would a low protein diet increase or decrease the protein needs
A stock solution is prepared by adding 35 mL of 1.5 M NaNO2 to enough water to make 49 mL. How many moles of NO2- are in 30 mL of the stock solution
the hydrated salt is overheated and the anhydrous salt thermally decomposes one product being a gas. will the reported
Show me how to find Kb given that the solution is .10M NaCH3CO2 , the pH is 7.31, and the [H+] is 4.90x10^-8.
What are the advantages and disadvantages of writing a chemical equation with chemical symbols and formulas instead of just words?
What is the pH of a solution formed by dissolving 0.100 mol of an acid with a Ka of 1.750x(10 to the -5th) and 0.200 mol of the sodium salt of the same acid in a total volume of 1.000L
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