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The partial molar volumes of water and ethanol in a solution with xH2O = 0.45 at 25 ?C are 17.0 and 57.5 cm3 mol?1, respectively. Calculate the volume change upon mixing sufficient ethanol with 8.85mol of water to give this concentration. The densities of water and ethanol are 0.997 and 0.7893 g cm?3, respectively, at this temperature.
Calculate the pH of 1.00 L of a buffer that is 0.130 M HNO2 and 0.190 M NaNO2. What is the pH of the same buffer after the addition of 1.00 mL of 12.0 M HCl. (pKa of HNO2 = 3.40)
Ammonia reacts with oxygen gas to produce water and nitrogen gas. What mass of oxygen gas must be used to react with 19g of ammonia
What mass of glucose can be produced from a photosynthesis reaction 6CO2(g) + 6H2O-> C6H12O6(aq) + 6O2(g) that occurs using 18.4 mol CO2? Answer in units of g.
An atmospheric chemist studying the pollutant SO2, places a mixture of SO2 and O2 in a 2.00 L container at 800k and 1.90 atm. when the reaction occurs, gaseous SO3 forms, and the pressure falls to 1.65 atm
What is the electron configuration for Cuprous and Cupric, and since this is an exception to Aufbau, where are we removing electrons
If you wanted to prepare a solution of CO in water at 25 degrees celsius in which the CO concentration was 2.2 mM, what pressure of CO
calculate the amount of cobalt(II) nitrate hexahydrate [Co(NO3)2 * 6H2O] needed to prepare 50 mL of a 0.15 M cobat(II) nitrate stock
What name (label) is given to the hybridized orbitals of SF6. Explain how this label applies to the orbitals of the free atoms.
Consider the following reaction. N2 + 3H2 -> 2NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
The final temperature of the gas, Would it be feasible to make ethanol, C2H5OH, by the following reaction ( under standard conditions and 25 degrees C)
A balloon has a volume of 1.75L at a temperature of 25°C. What will be the volume of the balloon if you take it out into the winter cold air at -15°C?
Calculate the masses of the reactants and products of the following equation. Please show work.
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