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Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7g of Fe reacts completely with oxygen?
Using 250 mL of 0.250 M solution of CoCl2 and distilled water, how would you prepare 100 mL of 0.005M solution of CoCl2. What absorbance would you expect the solution to have
.2956g of an iron compound yielded .06679g of Fe203 upon oxidation. What is the mass percent of iron in the compound
A 4.855-g sample of ore was processed into 500.0 mL of acidic solution, and a 100.0-mL aliquot of this solution required 19.74 mL of 0.1058 M KMnO4 to reach the titration endpoint. What was the mass percent of iron in the ore sample
What is the definition and units for atomic mass. What is the difference between molecular mass and nominal mass. Which one do we usually use
what mole ratio of molecular chlorine to molecular oxygen would result from the breakup of compound Cl2O7 into its constituent elements.
Please explain the following technical terms used in mass spectrometry: a) Molecular ion,
A 1.375g sample of mannitol. a sugar found in seaweed. is burned completely in oxygen to give 1.993 g of carbon dioxide and 0.9519 g of water. Find the empirical formula of mannitol
The osmotic pressure of a solution containing 2.04 g of an unknown compound dissolved in 175 mL of solution at 25 C is 2.13 atm. The combustion of 22.08 g of the unknown compound produced 36.26 g CO2 and 14.85 g H2O.
A 250.0 mL sample of chlorine gas is collected when the barometric pressure is 798 mmHg. What is the volume of the sample after the barometric pressure dropped to 745 mmHg?
If a plot of ln k versus 1/T for this reaction has the equation y = -1.32 x 105x + 111, what is the activation energy for this reaction
calculate the amount of 0.020 m kmno4 solution required to completely oxidize 37.99 ml of .100 m feso4 in an acidic
Write the net ionic equation for the following reactions: a. The precipitation of manganese (II) hydroxide b. The reaction that occurs when sodium fluoride is added to a solution containing iron
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