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Hydrochloric acid reacts with zinc metal to form zinc chloride and hydrogen gas. If 345.2 g of zinc metal reacts with 231.6 grams of acid. How many liters of hydrogen gas are produced? How many moles of zinc chloride are produced?
An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38°C, she adds 20.00 mL of 0.01017 M aqueous iodine, which reacts as follows:
How much heat is produced by the complete combustion of 256 CH4 of ? CH4+2O2=CO2+2H2O Hrxn=-802.3kJ
The smallest atoms can themselves exhibit quantum mechanical behavior. Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling 475 m/s
When heated, ammonium carbonate decomposes as follows. NH4CO2NH2(s) -> 2NH3(g)+CO2(g) At a certain temp, the equilibrium pressure of the system is 0.318 atm. Calculate Kp for the reaction.
Bismuth oxide reacts with carbon to form bismuth metal: Bi2O3(s) + 3C(s) --> 2Bi(s) + 3CO(g)
Converting Voltages, Convert the following voltages. Assume the silver-silver chloride and calomel reference electrodes are saturated with KCl, giving cell potentials of +0.197 V and +0.241, respectively.
A certain substance has a heat of vaporization of 29.00 kj/mol. At what Kelvin temperature will the vapor pressure be 3 times highe
How many grams of NaCl are contained in 350. mL of a 0.103 M solution of sodium chloride?
Tell whether each of the experimental errors in excercise will affect the melting point of the unknown component.
Use two separate t tests to compare results from lab Coat with those from lab A and lab B at the 95% confidence level. Comments on the sensibility of the time test results.
What mass of copper would you expect to be deposited from a copper (II) sulphate solution using a current
what is the total pressure in the reaction flask at the end of the reaction? What are the partial pressures of the gases in the flask?
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