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calculate the density of hydrogen bromide gas in grams per liter at 733 mmhg and 46 degress celsius.
4HCl + MnO2 = MnCl2 + 2H2O + Cl2 When 1.22 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
calculate the heat released when 166g of water at 23 degrees celcius is converted to ice at negative 10 degrees celcius
A weather balloon has a volume of 450 L when filled with helium at 45oC to a pressure 0.80 atm. What is the new volume of the balloon in an atmosphere where the pressure
What does a yellow flame in the Bunsen burner indicate? How can this be corrected? Why use a funnel to transfer large volume of liquid from one container to another?
This acidity has affected many lakes in northern Europe, the northern United States, and Canada, reducing fish populations and affecting other parts of the ecological network within the lakes and surrounding forests
what is the concentration of H+ ions in a solution of hydrochloric acid that was prepared by diluting 5o.o ml of concentrated
Calculate the equilibrium concentrations if the initial concentrations are 2.31M N2 and 0.54M O2. (This N2/O2 concentration ratio is the ratio found in air.)
An 8.00 g sample of SO3 was placed an evacuated container where it is decomposed at 600 degrees C according to the following reaction.
When too much H2CO3 is in the blood, the enzyme carbonic anhydrase catalyzes the conversion of carbonic acid, H2CO3, to carbon dioxide, CO2, and water, H2O.
what is the temperature of the air inside of the tire when the pressure increases to 29 psi? Assume tire volume is constant.
A graduated cylinder contains 131 mL of water. A 18.0 g piece of iron (density = 7.86 rm{g/cm^3}) and a 25.0 g piece of lead are added.
How long would it take for a radioactive isotope with a half life of 2 weeks to lose at least 70% of its radioactivity? Describe two clinical uses of Radioactivity.
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