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In order to analyze a commercial hydrogen peroxide solution by the procedure described in this experiment, you must first dilute the commercial peroxide solution with distilled water. For example, 10Ml of a commercial peroxide solution measured with a volumetric pipet was diluted to 100ml in a volumetric flask and mixed thoroughly. 25.00ml of diluted peroxide was titrated. Assume that the diluted
peroxide solution had a density of 1.000g/ml-1Volume of diluted hydrogen peroxide solution, ml 25.00Molarity of the potassium solution 1.992x10-2Potassium permanganate solutioninitial buret reading 1.17final buret reading 26.09
Calulate the number of moles of KmnO4Calculate the number of moles of H2O2Calcualte the mass of H2O2 in the unknown.Calculate the percent H2O2 in the diluted peroxideCalculate the percent of H2O2 in the commercial hydrogen peroxide.
175g of water at 86.0 degrees C were added to a perfect calorimeter conataining 103 grams of water at 18.5 C. What is the final temperature of this water mixture?
cu/cu^2+ concentration cell has voltage of .21V at 25 c. the concentration of cu^2+ in one of the other half cell is 1.4E-3M. What is the concentration of{Cu^2 + in the other half-cell
We titrated a 0.1033 M NaOH solution into an unknown concentration of a weak acid (25.00 mL). It also says the unknown acid will have a concentration of about 0.1 M.
In order to produce 10000.0 kJ of energy, how many grams of oxygen must react?
The temperature in the laboratory was 25°C, and the barometric pressure was 740 mmHg. At 25°C, the vapor pressure of water is 23.8 mmHg. Calculate the equivalent mass, EM, of the unknown metal anode. The student was told the metal was oxidized to ..
A 4.37 gram sample of a certain diatomic gas occupies a volume of 3.00 L at 1.00 atm and 45°C. What is the gas
Draw a dilution scheme that would produce countable plates if the original culture has 4,730,000 viable cells/mL.
The volume of oxygen collected over water is 226 mL at 25°C and 503.0 torr. Calculate the dry volume in milliliters of oxygen at STP.
determine the volume of air and partial pressure of nitrogen oxygen water vapor and air.in the laboratory you will test
What happens when the external pressure is lower than the vapor pressure of a liquid in a container?
Write a chemical equation describing the condensation process for CO2 and a chemical equation describing the freezing
The addition of iodide (NaI or KI) often catalyzes SN2 reactions o alkyl chlorides or bromides. explain how by showing reaction equations of what happens.
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