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Electrical energy can be used to separate water into oxygen gas and hydrogen gas. In one such experiment, 48.0 mL of hydrogen gas is collected over water at 25.0 ºC. Atmospheric pressure is 7.5x10^2 mm Hg. How many grams of h2 are collected?
Solid soduim reacts violently with water producing heat hydrogen and sodium hydroxide. How many moeclues of hydrogen gas are formed when 48.7 g of sodium are added to water.
Sulfur dioxide gas is oxidized in 50 percent excess air with 70 percent conversion to sulfur trioxide. The gases enter the reactor at 350 oC and leave at 450 oC.
How many moles of nitrogen are required to fill a 3.50 L tank at 25.0 oC to a final pressure of 8.74 atm
If 29.1 mL of 0.4 M NaOH is used to reach the endpoint when titrating 20.1 mL of acetic acid, what is the concentration of the acetic acid in moles/L
How many grams of methane must be combusted to heat 1.15 of water from 26.0 to 87.0, assuming as a product and 100% efficiency in heat transfer?
Estimate the heat released when ethene CH2 CH2 reacts with hydrogen gas to give CH3CH3.
Calculate the amount of heat liberated (in kJ) from 355 g of mercury when it cools from 76.0°C to 13.0°C.
How much heat is required to heat 410g of copper from 25degree C to 200degree C?
Amount of H2O2 in 15.8 g of hair bleach was obtained by titration with a standard KMnO4 soln.
Elements, which has the largest first ionization energy and equation correctly represents the first ionization of calcium?
Either bulb will be used for 2,000 hours per year at an electricity cost of $0.14/kwh (kilowatt-hour). If the interest rate is 6%, which bulb is more cost effective over 8,000 hours of use based upon a comparision of Net Present Values?
How much heat is absorbed when 63.7g H2O(l) at 100 degrees C is converted to steam at 100 degrees C? Express your answer in kJ.
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