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A tank contains 7.3 moles of nitrogen, 5.2 moles of oxygen, 1.5 moles of helium, and 8.1 moles of carbon dioxide at -100*C and under 1000 atm. Calculate the partial pressure of each gas in the mixture.
in an experiment a student gently heated a hydrated copper compound to remove the water of hydration. the following
Derive the activation energy for a reaction that proceeds 2 times faster when the temperature is raised from 20 C to 30 C.
Heat is lost to the styrofoam calorimeter. Assuming a 6.22 C temperature change for the reaction of HCl(aq) with NaOH(aq), calculate the heat loss to the inner 2.35-g styrofoam cup. The specific heat of styrofoam is 1.34 J/gC.
What will be the experimental enthalpy of reaction when 0.5000g of zinc reacts with 20.00mL of 1.500M HCl, changing the temperatrure of the solution
The pH of a solution oh HN3 was found to be 4.7, find the original concentration of the hydroazoic acid, HN3
Tell what type of chemical reaction is represented by the following chemical equation.
If metallic copper forms on a strip of nickel dipped in 1M CuSO4, what conclusions can be reached about the relative strengths of Ni 2+ (aq) and/vs Cu 2+ (aq) as oxidizers
A 15.00 mL sample of unknown concentration of sulfuric acid is precititated with excess lead(II) nitrate and a precipitate of lead(II) sulfate is collected.
Using standard reduction potentials, calculate the standard E0 cell, (emf), for each of the following reactions. 1. Show half reactions
In the reaction 2-phenylacetic acid + ethanol in a H2SO4 solution yields Ethyl-2-phenylacetate, (a) which group in the acyl compound is being substituted and (b) what is the substituting group?
At 700 K, the equilibrium constant, Kc, for the reaction H2 + I2 2 HI is 49.0. How many moles of H2 would have to be added to 1.00 mole of I2 in a 10.0-L flask to get a 90.0% yield
what are the steps to calculate the followingnbspnbsphow many grams of barium sulfate are produced if 25.34 ml of 0.113
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