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Important information about Redox titrationHow do I calculate the moles of iron (ore sample) and how do I calculate the mass percent of iron in the ore from this problem;
Ferrous ion reacts with permanganate ion Mno4 in acidic solution to produce the ferric ion Fe3. A 6.893 gram sample of ore was mechanically crushed and then treated with HCl which oxidized all the iron in the ore to the ferrous ion, next, the acid solution containing all the ferrous ions was titrated with.100M of KMno4 solution. The end point was reached when 13.889 ml of potassium permanganate solution was used.
Determine the molar mass of the nonelectrolyte if the osmotic pressure of the solution = 23.6 atm, also express your answerin g/mol?
For the neutralization reaction involving HNO3 and Ca(OH)2, how many liters of 1.55 M HNO3 are needed to react with 45.8 mL of a 4.66 M Ca(OH)2 solution.
what is the maximum amount of P4S10(444.545 g/mol) which could be formed from 17.12 g of P4 (123.895 g/mol) and 0.137 mol of S8 (256.52 g/mol).
What is the concentration of g salt per 100 g water of a saturated solution in which 3.82 g of salt are dissolved in 9.54 g of water?
0.60 g of hydrogen chloride HCl is dissolved in water to make 7.5 L of solution. What is the pH of the resulting hydrochloric acid solution.
10g of CaCO3 are treated with a solution of HCl and 1.12 litre of CO2 are produced at STP . find out the number of moles of HCl in the solution
Calculate the average absorbance and use this value for an absorbance point on your graph. Use the printed graph from above, find the average Absorbance of the unknown on the y-axis
you add 1.65L of water to 112g of sodium acetate. what is the molarity of the sodium acetate in the solution
Calculate the quantity of NH3 is produced upon reaction of 4.0 moles of water and 65.0 g of CaCN2.
when a 50.0-g nugget of pure gold is heated from 35.0 C to 50.o C, it absorbed 5200.0J of energy. find the specific heat of gold.
If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.
Explain why a mercury-in-glass thermometer with a uniform-bore capillary that is correct at 0 celsius and 100 celsius read 49.9 celsius when the temperature is actually 50 celsius.
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