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Utilizing standard enthalpies of formation, find out how much heat is released when 25.0g of CH4 is subjected for combustion is excess O2? All reactants and products are gases.
Understand how the ability to form hydrogen bonds gives water cohesiveness and how this property is exploited by living things.
How many grams of ethylene glycol, C2H4(OH)2, must be added to 800 g of water to yield a solution that will freeze at -8.4 oC
A solution is prepared by dissolving 13.4 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 12.00 mL sample of this stock solution is added to 57.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
please explain step by step how this is done with thesolution. thank you.1 a student determines the molar mass of
Consider the titration of a 24.0 ml sample of 0.120 M HC2H3O2 with 0.105 M NaOH. Determine the initial pH.
in july in los angeles the incident sunlight at ground level has a power density of 1.2 kw m-2 at noon. a swimming pool
A compound contains only carbon, hydrogen, and oxygen. Combustion of 51.34 g of the compound yields 75.26 g of CO2 and 30.81 g of H2O. The molar mass of the compound is 90.078 g/mol.
calculate the mol O2 added in the air, using the fact that the N2 in the ?ue gas equals the N2 added in the air. Then make a carbon balance to obtain the total moles of C added.)
Calculate the volume in liters of a 0.024 micro M copper (II) sulfate solution that contains 11.0 mol of copper (II) sulfate
Calculate the mass of methane that must be burned to provide enough heat to convert 128.0 g of water at 36.0°C into steam at 103.0°C. (Assume that the H2O produced in the combustion reaction is steam rather than liquid water.)
Find the equilibrium partial pressures of A and B for each of the following different values of Kp . Assume that the initial partial pressure of B in each case is 1.0 atm and that the initial partial pressure of A is 0.0 atm . Make any appropriate..
At a certain temperature, the Kp for the decompositon of H2S is 0.800. H2S(g0 H2(g)+S(g) Initally, only H2S is present at a pressure of 0.239 atm in a closed container. What is the total pressure in the container at equilibrium
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