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Explain isolation precautions and discuss different type of isolation precautions and equipments used.
At 700 K, the equilibrium constant, Kc, for the reaction H2 + I2 2 HI is 49.0. How many moles of H2 would have to be added to 1.00 mole of I2 in a 10.0-L flask to get a 90.0% yield
A few a particles were deflected at very large angles. (c) What differences would you expect if beryllium foil were used instead of gold foil in a the scattering experiment?
A molecular compound contains 92.3% carbon and 7.7% hydrogen by weight. If 0.152 mol of the compound weighs 3.95 g, what is its molecular formula?
In 2008, carbon dioxide levels at the South Pole reached 385 parts per million by volume. (The 1985 reading was 314.6 ppm by volume.) Convert the 2008 reading to a partial pressure (in bar).
The heat energy required to melt 1.00 g of ice at 0°C is 333 J. If one ice cube has a mass of 62.0 g, and a tray contains 16 ice cubes, what quantity of energy is required to melt a tray of ice cubes to form liquid water at 0°C?
Over a wide temperature range, the reaction, M2O3(s) + C(s) ® M(s) + CO2(g), is spontaneous at low temperatures but non-spontaneous at high temperatures.
A solid laboratory unknown contains two substances, lead(II) carbonate and potassium carbonate. A 5.000 g sample of this unknown was treated with aqueous nitric acid to dissolve it, then, after further treatment to adjust the acidity, it was treat..
Calculate the entropy of mixing if two moles of N2(g) are mixed with one mole O2(g) at the same temperature and pressure, assuming ideal behavior.
The total pressure of the container after the water condenses (5C) is .857 atm. What are the partial pressures of the 4 gases at 5C. e)What was the temperature of the container in Kelvin before it was cooled to 5C?
Give the name and formula for the acid derived from each of the following anions. (using the format CO2 for CO2.)name formula
Draw and name the molecule which contains only carbon and hydrgen atoms only three of which are carbon
calculate the equilibrium concentrations of all species and the ph in a solution where cooh2 is prepared by mixing
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