Reduction of dichromate ion
Half Reaction of K2Cr2O7 + 7H2SO4 +6FeSO4 = K2SO4+ Cr2(SO4)3 + 7H20
What is the half reaction showing the reduction of dichromate ion? and what is the half reaction showing the oxidation of iron (II) ion?
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a sample of helium gas initially at 37 degrees celsius, 785 torr and 2.00L was heated to 58.0 degrees celcius while the volume expanded to 3.24L. What is the final pressure in atm.
The active ingredient in toothpaste is sodium fluoride, an anticavity agent. a 170 g tube of toothpaste lists the concentration of sodium fluoride a s0.24%. how many grams of sodium fluoride are in a toothpaste.
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 14C?
A calorimeter containing 200.0 mL of water was calibrated by carrying out a reaction which released 15.6 kJ of heat. If the temperature rose 3.25 degrees celcius then the heat capacity of the calorimeter inclusing the water is?
When 9.6 grams of NaBr are dissolved in enough water to create a 165-gram solution, what is the solution's concentration, expressed as a percent by mass?
Calculate the theoretical yield of when 110g of C2H6 reacts with 207g Cl2 of , assuming that and react only to form C2H5Cl and HCl . Calculate the percent yield of if the reaction produces 169g of C2H5Cl .
How much will the temperature change when 730 g of each of the following materials absorbs 1240 cal of heat energy?
In the reaction where the potassium chlorate is decomposed into potassium chloride and oxygen. How much oxygen can be made from 45.8g of the potassium chlorate?
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