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A) What mass of carbon dioxide is produced from the complete combustion of 6.00×10-3 g of methane?
B) What mass of water is produced from the complete combustion of 6.00×10-3 g of methane?
C) What mass of oxygen is needed for the complete combustion of 6.00×10-3 g of methane?
A solution of salicylate dianion is prepared by mixing 0.158 g of reagent grade acetylsalicylic acid in 5 mL of 1 M sodium hydroxide and heating the mixture until all of the solid dissolves.
What is the mole fraction of water in this solution? What is the vapor pressure of the solution at 25 degrees Celsius, given the vapor pressure of pure water at 25 degrees Celsius is 23.8torr
Suppose that the reaction A---> products is exothermic and has an activation barrier of 75kJ/mol. Sketch an energy diagram showing the energy of the reaction as a function of the progress of the reaction. Draw a second energy curve showing the eff..
How many grams of hydrogen gas are formed when 399.5 mL of 8.37 M HCl is used in the following reaction: Mg(s) + 2 HCl(aq) ? MgCl2(aq) + H2(g)
How many kilograms of chalcopyrite must be mined to obtain 320.g of pure \rm Cu? Express your answer to three significant figures and include the appropriate units.
One method for neutralizing acids in surface water is to add lime (CaCO3). Write a balanced equation for the neutralization of H+ with limestone.
in the news we often hear examples of how dna or the transfer of genetic information impacted someones life. examples
a solution containing sodium fluoride is mixed with one containing calcium nitrate to form a solution that is 0.015m
An electric field should exist inside a conductor that carries a current. Explain how is that possible in view of the fact that in electrostatics we concluded that the electric field must be zero inside a conductor
The good professor accidently grabs the Na2HPO4 bottle. What pH did professor Whoops expect the solution to be. what was the actual pH of the solution as made
What volume of a 0.1 M ClO- solution reacts stoichiometrically with a 10 mL solution of 0.2 M CrO2-? Use the reaction 2 CrO2- + 3 ClO- --> 2 CrO4-2 + 3 Cl- to assist in the calculation.
Which of the following substances would have a standard enthalpy of formation equal to O kj/mol. Select all that apply
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