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1: how many moles of na2s2o3 react with each mole of kio3 used in the standrdization?
2: what is the oxidition state of a cl in ocl- ,and s in na2s2O3?
3: if 13.75 ml of Na2S2O3 solution is required to titrate the iodine from 19.85ml of 0.0115M KIO3solution and excess KI what is the molarity of the na2s2o3 solution?
4: how many grams of sodium thiosulfate are needed to make 300 ml of 0.050M solution?
5: is (IO3-) an oxidizing or reducing agent?
Prepare a marketing plan proposal to sell the cleaning products in one country located within either of those two regions. You should make sure to answer the following questions in your marketing plan: What alterations might have to be made to the ..
Include activity coefficients in your solubility-product expression. The Ksp of AgI is 8.3 x1017.
In a country with a market economy, the owners of firms (businesses) are, to use Gwartney, et. al.'s term, residual claimants. What are the implications of this particular characteristic of business owners? How do other citizens within the country..
In the titration of a solution of a weak monoprotic acid with a .1325M solution of of NaOH, the pH was halfway to the equivalence point was 4.42.
Trimyristin is one of a number of natural products found in nutmeg, including the one which gives it its characteristic odor. Bases on the chemical properties of trimyristin and the amount of inpurity found when the extracted trimyristin was re-cr..
Calculate the pH of a solution of CO2 at 38 degrees Celsius in equilibrium with the gas at a particular pressure of 3.55 atm.
Suppose we have a random sample with 8 observations: x1=-2, x2=x3=-1, x4=x5=x6=0, x7=3, x8=8. Then density function of x is given by \(p(x)=0.5e^{-|x-\mu|}\) Find the maximum likelihood estimator for u.
The refractive indices at 20o C of isobutyl bromideand isobutyl choloride are 1.4368 and 1.3785 respectively.Determine the molar composition (in percent) of the mixture byassuming a linear relationship
Why An adequate answer will address what the reported melting point and percent yeild suggest about the purity of the isolated trimyristin.
To what extent would increased government involvement with regard to fuel efficiency affect the behavior of manufacturers? To what extent would increased government involvement with regard to safety affect the behavior of manufacturers? Does it seem ..
To determine the number of molecules present in air using the ideal gas law and Avogadro's number - how many molecules of each type of gas are present in 1.0 L of air at STP?
How many milliliters of a 0.56 M HCl solution do you need to obtain 0.0046 mol of HCl?
What volume of 0.2500 M cobalt(III) sulfate is required to react completely with a) 25.00 mL of 0.0315 M calcium hydroxide?
Polyisobutylene (PIB) is equilibrated in propane vapor at 35 oC. At this temperature, the saturated pressure (p10) of propane is 9050 mm Hg and its density is 0.490 g/cm3
Which of the following are a conjugate acid-base pair in the above reaction?
show the calculation for the percent yield of K3[Fe(C2O4)3].3H2O using your actual yield and the theoretical yield
A 0.50g sample of vegetable oil is placed in a caloriemeter. When the sample is burned 18.9kj are burned off. What is the caloric value in kcal/g of the oil? I am not sure how to set this problem up. Please help
the air in the laboratory was measured with a barometer to be 7.20 x 10 squared mm Hg. what is the laboratory air pressure in atm.
the threshold wavelength for potassium metal is 564 nm. what is its work? what is the kinetic energy of electrons ejected if radiation of wavelength 410 nm is used?
A 10.0 balloon contains gas at a pressure of 640 torr. What is the new pressure of the gas at the 22.0 liters volumes if there is no change in temperature.
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide.
Why is HC2H3O2 not a good conductor or strong electrolyte?
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