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The temperature of 500.0 g of water contained in a calorimeter increased from 20.0 °C to 50.0 °C when 5.00 g of fuel was burned to completion. What is the ÎH of this combustion reaction? (The specific heat of water is 4.184 J/g°C and the molecular weight of the fuel is 40.0 g/mol.)
10.0 mL of a 0.30 M sodium phosphate solution reacts with 20.0 mL of a 0.20 M lead(II) nitrate solution (assume no volume change). What is the concentration of phosphate ions left in solution after the reaction is complete
What is the purpose of massing the watch glass and Buchner funnel filter paper prior
The mass of the sample before heating was 3.327g and after heating the mass was 2.432g. What is the percent composition of sodium carbonate in the original mixture?
determine the volume of .450m napo4 is needed to precipitate all the leadii ions from 190.0ml of .550m leadii
How many grams of calcium hydroxide are obtained in the reaction of 60.0 gms of calcium with water
multiple choice questions in free energy change.1. the enthalpy and entropy change of a reaction are -6.1 kjmole and
A sample of calcium carbonate absorbs 45.5 J of heat upon which the temperature of the sample increases from 21.1 degrees celcius to 28.5 degrees celcius.
An automobile gasoline tank holds 35 kg of gasoline. When the gasoline burns, 88 kg of oxygen is consumed, and carbon dioxide and water are produced.
A white precipitate formed when the barium hydroxide solution was mixed with the sulphuric acid. *Mass of filter paper=0.96g *Mass of filter paper and precipitate=5.25g
How is the equilibrium yield of C6H12O6 affected by each of the following? 6 CO2(g) + 6 H2O(l) + HEAT C6H12O6(s) + 6 O2(g) (a) increasing PCO2 increases decreases no effect
What is the lowest possible energy (in electron volts) of an electron in hydrogen if its orbital angular momentum is 2?
What is the % yield of the reaction. Also what will happen if you place two electrodes in a solution of your product and connect the electrodes to the battery. What will occur
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