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Iron pyrite (FeS2) is the form in which much of the sulfur exists in coal. In the combustion ofcoal, oxygen reacts with iron pyrite to produceiron(III) oxide and sulfur dioxide, which is amajor source of air pollution and a substantialcontributor to acid rain.What mass of Fe2O3 is produced from 85 L of oxygen at 3.73 atm and 143 C with an excess of iron pyrite?
Calculate the amount of heat liberated (in kJ) from 421 g of mercury when it cools from 91.0°C to 11.0°C.
Molar mass has the units of grams/mole. Molar mass serves as a conversion factor between numbers of moles and mass. If you know how many moles you have, you can calculate their mass; if you know the mass of a sample, you can calculate the number o..
the molecule atracurium is a very complex drug neuromuscular blocking agent and is associated to the natural product
What is the pH of a solution made by mixing 100.00 mL of .20 M HCl with 50.0 mL of .10 M HCl. Assume that the volumes are additive
Compute the number of moles - As we know many volatile substances are present in Earth's atmosphere in trace amounts.
Assume that the wet limestone process requires 1 metric ton of calcium carbonate to remove + 85.0 % of the sulfur from 4 metric tons of coal containing + 10.0 % S Assume that the sulfur product is calcium sulfate.
aluminum and 351 mL of 0.621 M solution of copper (II) chloride, how much of each substance will be present at the end of the reaction. If 10.6 g of the solid is formed, what is the % yield of the reaction?
Identify the substance produced in the liver that helps catalyze this reaction.
How much heat must be absorbed by the six pack to lower its temperature from 25.0C to 5.0C?
what is the presentage compostition of both of the components, which is the limiting reagent (if there is) and what is the theoretical yeild of each of them.
The rate constant for the equation 2C2F4 --> C4F8 is 0.0438 M?1· s?1. We start with 0.142 mol C2F4 in a 5.00-liter container, with no C4F8 initially present. What will be the concentration of C2F4 after 1.00 hour
Give the x value followed by the y value, separated by a comma. Express your answer in the form x,y
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