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What is the approach called that we use to find the "best guess" linear equation for our data? How do we know it is the "best guess?"
the fraction of the initial mass of gas remaining in the tank if carbon dioxide obeys the ideal gas and PR equations of state
If High purity benzoic acid [C6H5COOH; H(rxn) = -3227 kJ/mol] is a combustion standard for calibrating bomb calorimeters. If an unknown quantity of the benzoic acid is burn up in the calorimeter (heat capacity = 1365 J/C) containing exactly 800 g ..
What is the calculated value of the partial pressure(atm) of O2 in acid mine water of pH 1.700, in which [Fe3+] = [Fe2+]?
Write systematic coupling patterns showing the relative chemical shifts observed for these alkyl groups. Explain your reasoning
A sample of vinegar has a freezing point depression of 2.0 degrees C. What is the estimated percent by mass of acetic acid in the vinegar? Molar mass of acetic acid is 60g/mol
Potassium nitrate has lattice energy of -163.8 kcal/mol as well as a heat of hydration of -155.5 kcal/mol. Explain how much potassium nitrate has to dissolve in water to absorb 114kJ of heat
In an experiment you combine 4-methyl-2-pentene and water, in the lab you setup the experiment using a a heater, condenser and N2 gas and add the reagent H2SO4
In the titration of 50.0 mL of 0.0200 M C6H5COOH{aq} with 0.100 M NaOH(aq), what is / are the major species in the solution after the addition of 5.0 mL of NaOH
What is the limiting reactant when equal masses of iron(III) nitrate and potassium phosphate react in solution?
If the reaction of 0.650 g of rhodium(III) sulfate with excess sodium hydroxide produces 0.320 g of rhodium(III) hydroxide, what is the percent yield
The chemical mechanism of the reaction involves transfer of phosphoryl group to the enzyme, forming a phospho-enzyme intermediate: a His residue is phosphorylated, and H2O hydrolyzes the P enzyme intermediate. Determine the type of mechanism.
observed that 7.48 mmol of baf2 will dissolve in 1.0L of water. use these data to calculate the value of Ksp for barium fluoride
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