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1.)Write the Balanced net ionic equation for the reaction between MnO4- ion and Fe2+ ion in acidic solution.
2.) How many moles of Fe2+ ion can be iodized by .0014 moles of MnO4- ion in the reaction in question 1.
3.) A solid sample containing some Fe 2+ ion weighs 1.062g. It requires 24.12 mL 0.01562 M KMno4 to titrate the Fe2+ in the dissolved sample to a pink end point.
a) How many moles Mno4- ion are required?
b) How many moles Fe2+ are there in the sample?
c) How many grams of iron are there in the sample?
d) What is the percentage of Fe in the sample?
4.)What is the percentage of Fe in iron(II) ammonium sulfate hexahydrate.
Barium sulfate, BaSO4, is made by the following reaction: Ba(NO3)2(aq) + Na2SO4(aq) à BaSO4(s) + 2NaNO3(aq).
The average pH of precipitation in rural areas is 5.80. Assuming that the pH is controlled by the carbonate system, i.e., no anthropogenic acid gases are present in the atmosphere.
What is the pH of a solution which results from mixing 150 mL of 0.50M acetic acid and 150 mL of 0.50M sodium hydroxide at 25oC?
Write the simplest balanced equations, and find the actual relative masses of the elements. Explain your reasoning.
When ammonia is added to nickel ions in aqueous solution, the water molecules bound to the Ni2+ are replaced by ammonia molecules.
If the average solar insolation in USA = 4.25 kWh m-2 per day , and the area of USA is 9.36 x 1012 m2. Calculate: 1. The total available power in W. 2
A solution containing Pt4+ is electrolyzed with a current of 4.20 A. How long will it take to plate out 65% of the platinum in 0.50 L of a 0.010 M solution of Pt4+
how many grams of K2SO4 would you need to prepare 1500g of 5.0% K2SO4 (m/m) solution?
The compounds Na2O, CdS and ZrI4, all can be described as cubic closest packed anions with the cations in tetrahedral holes. What fraction of the tetrahedral holes is occupied for each case?
describe how will you prepare a supersaturated solution of potassium nitrate in water.
Nitrogen dioxide is obtained in a cylinder, but exists in equilibrium with dinitrogen tetrooxide. A 5.00g sample of this mixture is transferred to a 0.5L flask at 298K.
You are checking the accuracy of a volumetric flask marked 10.00 mL. You measure the volume of water contained in the flask by measuring the mass of the empty flask
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