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Explain how much heat is evolved when 50.0mL of CS2 (d=1.263 g/mL) react with 5.00 L of chlorine gas at 2.78atm and 27 degrees Celsius?
The rate of disappearance of HBr in the gas phase reaction is 0.103 Ms-1 at 150 deg Celsius. what is the rate of reaction.
A certain reaction has an Eact of 62.3 kj/mol (14.9 kcal/mol) and a frequency factor of 7.15X10^8LXmil-1Xsec-1. use the arrhenius equation to calculate the rate constant for this reaction at 35 degrees c
A 136.6 mg sample of a crushed Vitamin C tablet was dissolved in 40 mL of H2SO4 and 20 mL of water. Two grams of KI and 25.00 mL of 0.0155 M KIO3 solution was added, and the mixture titrated to a starch endpoint.
How many moles of H3O+ must be added to 482 mL of a solution to adjust the pH from 8.80 to 5.56? Use E notation and 3 significant figures.
"Based upon what you know about the accepted mechanism for hydration, can you see any reason why this hydration should be 100% stereoselective?"
Calculate the PH of this solution.
For the following reaction KClO3---->KCl+1/2 O2 assign oxidation states to each element on each side of the equation. reactants and products. Which element is oxidized? Which element is reduced
When 15.6 mL of 0.500 M AgNO3 is added to 12.5 mL of 0.300 M NH4Cl, how many grams of AgCl are formed
The combustion of propane may be described by the chemical equation. C3H8(g) + 5O2(g) arrow 3CO2(g) +4H2O(g) How many grams of O2(g) are needed to completely burn 95.5 g of C3H8(g)
What mass of C2H5OH should be added to 630 kg of the paraffin in formulating the mixture if the vapor pressure of ethanol at 35 degrees celcius over the mixture is to be 8 torr. The vapor pressure of pure ethanol at 35 degrees celcius is 100 torr.
What is the pH of a buffer solution prepared from 5.15g of NH4NO3 and 0.10L of 0.15M NH3? What is the new pH if the solution is diluted with pure water to a volume of 500mL
The heat changes that come with the formation of 1.00 mol of carbon dioxide from its elements is -393.7 kj/mol. Explain what heat changes accompanies the formation of 0.568 mol of CO2
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