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While 0.2250g of magnesium is heated with 0.5331g of nitrogen in a closed container, the magnesium is completely converted to 0.3114g of magnesium nitride. Explain what mass of unreacted nitrogen must remain?
a hybrid electric vehicle, has an EPA gas mileage of 52 mi/gal in the city. How many kilometers can the Prius travel on 15 liters of gasoline?
Why is mercury being replaced by other liquids such as colored alcohol as the temperature-sensing fluid
If you thought you had discovered a new element, how could you get the scientific world to accept your discovery? What roadblocks might you face, working outside the science community? How could you avoid being labeled a "crackpot"?
The first-order rate constant for the reaction of methyl chloride (CH3Cl) with water to produce methanol (CH3OH) and hydrochloric acid (HCl) is 3.32 10-10s-1 at 25°C. Calculate the rate constant at 38°C if the activation energy is 116 kJ/mol.
The temperature is 78oF, barometric pressure is 29.9 inches, and the relative humidity is 87%." From this information, estimate the mole fraction of water in the air and the dew point
calculate the ratio of dissolved benzioc acid to benzoate ion that will exist in solution at equilibrim at a ph of
If human height were quantized in one-foot increments, what would happen to the height of a child as she grows up.
Calculate the values of E for the cell when the following volumes of the Ce^4+ titrant have been added. (Activity coefficients may be ignored as they tend to cancel when calculating concentrations of ratios.
Find the of % Nickel in the coin solution: molority of Nickel is .8469 density of coin solution as 1.00g/mL
The problem: CaCO3 can be roasted to produce CaO and CO2. This reaction is carried out in a flash connected to an open-end mercury manometer when the atmospheric pressure is 754 torr
a solid circular rod that is 800 mm long with a radius of 15mm is subjected to an axial force of p80kn. the elongation
The equilibrium constant Kp for the reaction ; CCl4(g) C(s) + 2Cl2(g) at 700 celcius is 0.76 atm. Determine the initial pressure of carbon tetrachloride
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