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Compound B has a molar mass of 55.87 g/mol. A solution is prepared by dissolving 1.00 g of Compound B in enough water to create 250.0mL of solution. What is the molarity of Compound B in this solution?
explain the main concept behind the VSEPR theory of molecular shape. how do both number and type of electron pairs influence the shape of a molecule?
If the heat of combustion for a specific compound is -1170.0 kJ/mol and its molar mass is 46.49 g/mol, how many grams of this compound must
An impure sample of potassium hydrogen phthalate, KHP, having a mass of 84.02 g was dissolved in water. This acid sample was neutralized by the addition of 536.0 mL of 0.125 M NaOH.
what is the concentration of oxygen in air-saturated water at 25 degrees C and .85 atm? Assume that the mole fraction XO2 is .209 and Henry's law constant for oxygen
Consider a cylindrical container partially filled with ethanol (C2H6O). Using the model in which ethanol vapor pressure is a result of equilibrium between the rate of ethanol evaporation and condensation.
The initial pH. the volume of added base required to reach the equivalence point the pH at 12.0 mL of added base
Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane, while in its isomer
Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species
Calculate the amount of heat (in J) required to melt the sample. Use the following data: Tp = 44oC; C = 94 JoC-1 mol-1; ?Hfusion = 2.5 kJ/mol.
Consider an experimental run at 273 rm K where the initial number of moles (n_1) is actually 1.00 rm mol, and the final number of moles (n_2) is 2.00 rm mol.
List possible manipulation errors that might contribute to the following errors in results
a pH meter measures the concentration of hydronium ions, H3O+ in solution through the creation of a concentration differential between a standard hydrogen half cell inside the pH probe and the concentration of hydronium ions outside the probe
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