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A 0.374g sample of a metallic element, M, is completely dissolved in 100ml of 0.500N sulfuric acid. The liberated hydrogen occupied a volume of 320ml when collected over water at 25 degrees celcius and the pressure of the gas was equalized to the atmospheric pressure of 750mm as in this lab. Calculate the equivalent weight of the metal, M.
how many moles of carbon dioxide will be formed upon the complete reaction of 0.793 moles carbon monoxide with excess water?
The lethal inhalation dose of sarin for a 200lb person has been determined to be 0.0015 mg. Determine the LD50 of sarin that researchers used to calculate this lethal inhalation dose.
A sample containing 0.187 g Cl- is dissolved in 50.0 mL water.How many moles of Cl- ion are in the solution?What is the molarity of Cl- ion in the solution.
A sample of neon gas has a volume of 282 mL AT 160 degrees celsius. The sample is cooled at constant pressure to a volume of 685 mL. What is its new temperature?
What is the theoretical yield of aspirin if 190 kg of salicylic acid is allowed to react with 128 kg of acetic anhydride?
NH4CO2NH2(s)->2NH3(g) +CO2(g) (at equilibrium) starting with only the solid it is found at 40C the total gas pressure is 0.363 atm calculate equilibrium constant Kp
For the reaction shown below, Kp = 0.116 at 38.6 °C. Find the equilibrium partial pressures of ALL species if at the start of the reaction PCO = 1.17 atm and PCOBr2 = 1.4 atm
Discuss how to find the molar mass of a compound, percent composition of the elements of a compound and how to determine the empirical and molecular formulas from percent composition.
Thermochemistry : Comparing Heat Capacity of Bricks and Water, A house is designed to have passive solar energy features. Brickwork incorporated into the interior of the house acts as a heat absorber. Each brick weighs approximately 1.8 kg
How many liters of HCl at 100.0 oC and 740 mm Hg are produced from 150.0 g of C10H16?
how many moles of oxygen are consumed each time 0.500 mole of P2O5 is formed?
Write the structures of the saytzeff elimination
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