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A titration experiment is set up to use 0.235M bleach (NaOCl) to analyze CrO2-. If 50.0mL of the CrO2-(aq) solution required 37.75mL of bleach to react to completion, what would you calculate as the molarity of the CrO2- solution?2ClO-(aq) + CrO2-(aq) ----> 2Cl-(aq) + CrO42-(aq)
A student tried to make a buffer of pH 4.0 using sodium acetate and acetic acid. The initial pH of the buffer solution was 3.9. How should the student adjust the pH to the desired value?
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
molarity of acetic acid in a 15ml sample of vinegar that requires 22.7 ml of 0.550M solution of NaOH to reach neutralization point
Determine how much heat is evolved or absorbed when 40.0 of lithium iodide completely dissolves in water.
What conclusions can you come to regarding the accuracy in determining the conversion factor? include a statement about the significant figures in this exercise.
What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion.
In the laboratory a student finds that it takes 33.1 Joules to increase the temperature of 11.5 grams of solid lead from 20.3 to 39.9 degrees Celsius.
A sample containing 0.35 mol argon gas at a temperature of 13 C and a pressure of 568 torr is heated to 56 C and a pressure of 897 torr. A. What is the original volume of the gas? B. What is the new volume of the argon gas?
Calculate the moles of silver nitrate and sodium chloride. (c) Which reactant is the limiting reagent? (d) Determine the theoretical yield in grams of silver chloride formed.
57.0 mL of a 1.80 M solution is diluted to a volume of 238 mL. A 119-mL portion of that solution is diluted using 117 mL of water. What is the final concentration.
If the pH probe was miscalibrated and reports the pH and reports the pH to be 1 unit higher than the true pH of the solution it is in, would the molar mass you report for the solid acid be higher than
Use the van der Waals equation of state to plot the compressibility factor, Z, against P for methane at 180K and 250K. Hint: calculate Z as a function of V/n and P as a function of V/n, and then plot Z Vs. P.
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