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Compute the mass percent composition of nitrogen in each fertilizer: NH3, CO(NH2)2, NH4NO3, (NH4)2SO4.
How much PV work is done, if 90 grams of ethylene and 120 grams of HCl are allowed to react at atmospheric pressure and the volume change is -71.2 liters?
calculate the amount of heat required to completely sublime 34.0g of solid dry ice at its sublimation temperature. the
a 2.48 l sample of he at 739 torr is mixed with 6.08 l of ar at 325 torr both at 25 degrees c is placed in a 4.80 l
question 1 on a potential energy diagram what is true about activation energy?activation energy is the same for both
A 32.22 g sample of a metal that looks like aluminum is heated to 99.8 C in hot water. The metal is then quickly transferred into exactly 50.0 ml of water at 22.9 C in a calorimeter
what is the concentration of oxygen in air-saturated water at 25 degrees C and .85 atm? Assume that the mole fraction XO2 is .209 and Henry's law constant for oxygen
gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (c6h12o6 ) and oxygen gas.
Some KCl is dissolved in water at 25 degree Celsius, where it completely dissociates. The vapor pressure of pure water at 25 degree celsius is 28.3 mmHg.
The Henry's law constant for N2 in water at 37 °C is 8.2 × 10-7 M/mm Hg. What is the equilibrium concentration of N2 in water when the partial pressure of N2 is 605 mm Hg
Calcium oxide (lime) reacts with carbon dioxide to form calcium carbonate (chalk). CaO(s) + CO2(g) ? CaCO3(s) ?H = -178.4 kJ (a) Is this reaction exothermic or endothermic?
when hydrogen sulfide gas is bubbled into a solution of sodium hydroxide the reaction forms sodium sulfide and water.
The solubility product of PbBr2 is 8.9 10-6. Determine the molar solubility in the following. (a) pure water
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