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The production of iron and carbon dioxide from Iron (3) oxide and carbon monoxide is an exothermic reaction?how many kj of heat are produced when 3.40 mol Fe2O3 reacts with excess of CO?Fe2O3+3CO yeilds 2Fe+3CO2 Delta H=-26.3kj
A 52.0-g sample of an alloy at 93.0°C is placed into 379 g of water at 22.0°C in an insulated coffee cup. Assume that no heat is absorbed by the cup.
Compute the final temperature of the mixture (assuming no heat loss to the surroundings.)
A fuel gas containing 22% CO, 13% CO and 65% N2 by volume is combusted with theoretic amount of air in a furnance to heat solid burden material.
When an outside plastic envelope is removed, O2 molecules penetrate the paper causing the reaction to begin. A Typical packet contains 250 grams of iron to warm your hands or feet for up to 4 hours.
Consider the reaction of 5.0 moles of CS2 and 3.0 moles of NaOH according to the following reaction 3 CS2 + 6 NaOH -> 2 Na2CS3 + Na2CO3 + 3 H2O.
Calculate the mass of one oxygen atom and determine the number of oxygen atoms in a 10.00g sample of the element.
Octane has a density of 0.692 g/mL at 20 degrees celsius How many grams of oxygen are required to burn 1.10 gal of octance.
A 180 kiln is used for vitrifying ceramics. It is currently operating at 1025 , and the pressure is 1.100 . How many moles of air molecules are within the confines of the kiln.
The pH in a lake the size of 4.0 km X 7.0 km and an average depth of 100 m is found to be 4.5. Calculate the mass of calcium carbonate that must be added to the lake water in order to raise its pH to 6.0.
Determine its molecular formula if the molar mass of the compound = 199.55 grams per mole?
What is the molecular weigh of acetic acid that will form 2 moles of CO2 assuming complete combustion.
How many mL Hydrochloric acid of 0.1 M must be added to 100 mL of a 0.2 M solution of tris base to form a buffer ( pH 7.8)?
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