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The CO2 generated occupies a volume of 0.800 L at 1.24 atm and 26 degrees Celsius. What is the mole percent of NA2CO3 in the mixture if the total grams of the mixture is 5 grams?
it is given that the half-life of strontium-90 is twenty eight years. calculate how many grams of this nuclide in anbsp
A piece of magnesium (mass=16.2 grams) reacts completely with 10.7 grams of oxygen. In the second reaction you have 61.4 grams of magnesium and 103.7 grams of oxygen
What is the concentration of hydronium ion from pH and the concentration of hydroxide ion from pOH
Deionized water from a wash bottle was added to wash down the wall of the receiving flask during the titration .how does this affect the reported molar concentration of the sodium thiosulphate solution. explain
consider the following equation for the production of no2 from no2 nog 02g ------gt 2 no2ga. if 84.8 l of 02g measured
a gas sample in an open manometer system has a pressure of 530 mmhg . the mercury column has a height of 545 mm on the
Calculate the value of ?So in J/K for the combustion of 1 mole of propane to form carbon dioxide and gaseous water. S (C3H8(g)) = 271.3 S (O2(g)) = 203.1 S (CO2(g)) = 212.9 S (H2O(g)) = 188.0
an aqueous cacl2 solution has a vapor pressure of 83.0 mmhg at 50 degrees celsius. the vapor pressure of pure water at
Dissolve a compound with a molecular mass of 272.05 in a 10-mL volumetric flask. You remove a 1.00-mL aliquot, place it in a 25-mL volumetric flask and dilute it to the mark.
Include all reaction steps, a detailed mechanism and all reagents necessary. Make a note of any special purification steps if necessary. Synthesize 1,3,5-tribromobenzene from benzene or toluene.
Oxides of the alkaline earth family form _______ solutions upon reaction with water. a) acidic, b)basic, c) neutral, or d)amphiprotic
We add some solid silver chromate (Ag2CrO4, Ksp = 1.100x10-12) to a solution of 1.2202 M Li2CrO4. After equilibrium is achieved, what is the pAg (=-log[Ag+]) of this solution
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