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Hydrogen gas has a higher fuel value than natural gas on a mass basis but not on a volume basis. Thus, hydrogen is not competitive with natural gas as a fuel transported long distances through pipelines. Calculate the heats of combustion of H2 and CH4 (the principal component of natural gas)
(a) per mole of each,
(b) per gram of each,
(c) per cubic meter of each at STP. Assume H2O(l) as a product.
500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. how many moles of excess
State the balanced net equation for the reaction that takes place when 0.1 M solutions of potassium chromate as well as silver nitrate are mixed.
holds .35 L at 4.5 atm pressure. What is the volume when the gas is released into 1.0 atm pressure
Problem- A chemistry student needs 65.0g of tetrahydrofuran for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of tetrahydrofuran is 0.889g*cm^-3. 1) Calculate the volume of tetrahydro..
A solution of sodium nitrate, NaNO3, in water is 5.181 molar and its density is 1.2680 g mL-1. Calculate the percent, by weight, of sodium nitrate in the solution.
Barium peroxide decomposes when heated to give BaO and O2. Write the balanced equation for this reaction. How many moles of O2 is formed when 0.500 mole of BaO2 is decomposed
What is the mass of a magnesium block that measures 2.3 cm * 3.5 cm * 1.5 cm? The density of magnesium is 1.738 g/cm^3.
When acetaldehyde is reacted with 3 equivalents of formaldehyde under alkaline conditions, followed by treatment with sodium borohyfride, the product formed shows the following spectrum: IR: broad peak at 3326cm -1; H NMR: singlet at3.45. Singlet ..
Determine how many grams of copper sulphate are there in 219 grams of an aqeous solution that is 20.2% by weight of copper sulphate?
A 80.0 mL volume of 0.25 M HBr is titrated with 0.50 M KOH. Calculate the pH after addition of 40.0 mL of KOH.
The most important commercial process for converting N2 from the air into nitrogen-containing compounds is based on the reaction of N2 and H2 to form ammonia (NH3)
Three possible resonance structures are shown below for the SO2Cl2 molecule. Using formal charge, determine the order of stability of the three structures (i.e. the order in which they contribute to the overall resonance hybrid structure).
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