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A 8.90g sample of lead nitrate was heated in an open container to cause decomposition. Calculate the theoretical yield of PbO in grams.
the following reaction proceeds at constant temperature. What is the resulting total pressure of gases in now-joined flasks after the reaction proceeds to completion
a student was asked to identify an unknown hydrate by following the procedure described in this module. after heating
electromagnetic radiation has an energy of 926 j. the wavelength of this radiation is 856 nm. how many photons are
A student studied the clock reaction described in this experiment. She set up Reaction Mixture 2 by mixing 20 mL of 0.010 M KI, 10 mL 0.001 M Na2S2O3, 10 mL 0.040 M KBrO3, and 10 mL 0.10 M HCl using the procedure given. It took about 45 seconds fo..
designing and preparing aqueous buffer solution with the ph indicated.ph3.50your buffer solution must have the capacity
if 24.6 grams of lithium react with excess water how many liters of hydrogen gas can be produced at 301 kelvin and 1.01
The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. What fraction of the tritium initially in a sample is still present 30 years later?
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.052 moles of sulfuric acid is mixed with water to make 179 mililiter of solution, what is the molarity of H+?
determine the equilibrium ph of aqueous solutions of the following strong acids or bases: a)15mg/l of hso4- b)10 mM NaOH c)2500 mg/l of HNO3.
What is the pH of the rainwater assuming all the sulfuric acid is in the liquid water droplet? Hint: The "per m3" means per m3 of air for both [H2SO4] and the cloud liquid water.
When strontium bromide (SrBr2) is heated in a stream of chlorine gas, it is completely converted to strontium chloride
Identify the Qual I cation(s) that is(are) confirmed present in a reference solution by: the formation of a precipitate. the color of a soluble complex ion. the characteristic color of a flame test
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