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A 0.375 gram sample of impure BaCl2?2H2O is titrated with 0.100M AgNO3, requiring 28.44 mL. Calculate (a) the percent BaCl2?2H2O in the sample and (b) the percent Cl- in the sample.
Ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. From 164.5°C to 179.0°C, the rate constant increases by a factor of 4.27. What is the activation energy of this oxidation reaction?
what is the concentration of oygen dissolved in water at 20 degrees celsuis in equilibrium with a gas mixture at 0.81 atm.
Since the periodic table currently has 7 periods (and will have 7 until element 119, which will be the first element of the 8th period, is "discovered"), consider the electron shell with principle quantum number, n = 7.
What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0 degrees celsius to 40 degrees celsius?
If the titrant has a molarity of 0.2750 M and there are 50.00 mL of analyte present, what is the molarity of the analyte?
Barium fluoride has a Ksp of 1.0X10^-6. What is the barium ion concentration in a saturated solution where the fluoride concentration is 0.035M? Please show the steps needed to reach the end.
Which of the following molecules would be expected to be MOST water soluble?
Calculate the mass of ferrous ammonium sulfate you would need to add to a 5.00 mL volumetric flask to make a solution
Determine the percent yield if An 8.50 grams sample of Ammonia gives 12.0 g of Nitric Oxide?
In covalent bond formation, electron sharing occurs between elements with relatively low EA and low IE. Please explain the answer as well.
If in an experiment 42g of CO is burned with excess oxygen gas. Calculate how many grams of CO2 will be formed in the process.
Need to have a chart of the atoms and elements, so I can tell which is which on the assignment also need to draw a picture of the atom of oxygen
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