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A 0.1349-g sample of solid magnesium is burned in a bomb calorimeter that has a heat capacity of 1769 J/° C. The calorimeter contains exactly 321 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
A sample of calcium carbonate absorbs 45.5 J of heat, upon which the temperature of the sample increases from 21.1 oC to 28.5 oC. If the specific heat of calcium carbonate is 0.82 J/g K,
Calculate the amount of heat liberated (in kJ) from 351 g of mercury when it cools from 88.0°C to 15.0°C.
Calcium carbide reacts with water to form acetylene and calcium hydroxide. From the following enthalpy data calculate Delta Hf for CaC2
What is the Volume of 1.05mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
potassium hydroxide to a 250 mL volumetric flask. What is the concentration of potassium hydroxide in moles per liter?
In a reaction between pure acetic acid and sodium bicarbonate, 27.2 grams of sodium bicarbonate was added to 12.0 mL of acetic acid. Which reactant is the limiting reactant in this reaction?
Suppose you placed 0.500 mol of COBr2 in a 2.00 liter flask and heated it to 73°C. After equilibrium was reached, suppose you added an additional 2.00 mol of CO to the flask at the same temperature
What is the pressure in a gas container that is connected to an open end u tube manometer if the pressure of the atmosphere is 742 torr and the level of mercury in the arm
When a mixture of 10.0 g of C2H2 and 10.0 g of O2 is ignited, the resultant combustion reacion produces CO2 and H2O. How many grams of C2H2, O2, CO2
What would account for the smaller amount of napthalene collected. Mothballs in a closet gradually disappear over time. What happens to this material
Write equations to show how you would synthesize salicylic acid
A solution prepared by mixing 100 mL of 0.2 M glycine and 100 mL of 0.2 M Cu2+ is adjusted to a pH of 7 with NaOH. Calculate [Cu2+], [CuA+], [CuA2], [HA], and [A-] in the solution.
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