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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.
If a solution has a pH of 2.36 and you do a 20-fold dilution of it with ultrapure reagent-grade water, what will its pH be after you dilute it
Which of these is not a protease that acts in the small intestine?
design a series of reactions to convert ethanol to 2-butanol. You can use other inorganic reagents you need, but only ethanol
A flask contains a mixture of two ideal gases, A and B. Show graphically how the total pressure of the system depends on the amount of A present
Explain how an increase in the amount of dissolved CO2 in ocean water results in a decrease in the pH of ocean water.
20 sample of dry ice is added to a 765 flask containing nitrogen gas at a temperature of 25.0 and a pressure of 715 .
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
a sample of 11.0 grams of cacl2 is dissolved in 125 grams of h2o with both substances at twenty five degree celsius.
A solution of sodium hydroxide is prepared by mixing 2.00g of NaOH with 10.0g of water. The percent, by mass of NaOH is what?
a chemist often uses a white card with a black mark to aid in reading the meniscus of a clear liquid. How does this technique make the reading more accurate
The most abundant isotope of uranium, ^238 U, does not undergo fission. In a breeder reactor, however, a ^238 U atom captures a neutron and emits two beta particles to make a fissionable isotope of plutonium, which can then be used as fuel in a nu..
Methylamine (CH3NH2) is a weak base. In a 0.100 M solution, 6.30% of the base is ionized. What is its Kb
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