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the total volume of hydrogen needed to fill the Hindenberg was 2.0x10^8 L at 1.00 atm and 25 C. How many kilojoules of energy were evolved when it burned?
The solubility of oxygen gas in water at 25 °C and 1.0 atm pressure of oxygen is 0.041 g/L The solubility of oxygen in water at 3.0 atm and 25 °C is __________ g/L.
A sample of pure silver jewelry has mass of 63.3g and is heated to a temperature of 111.4C. It is placed into a container of water at 17C.
Calculate the change in internal energy of the following system: a balloon is cooled by removing 0.654 kJ of heat. It shrinks on cooling, and the atmosphere does 385 J of work on the balloon.
Write down the electron configurations for C2 and F2. What is the bond order for each? Which one is likely to have larger bond dissociation energy.
what gas are evolved from the acidified solution of hydrolyzed albumin? write equationfor the reaction of the gas with lead II acetate?
if the empty cylinder has the mass of 94.2g and the cylinder with water has the mass of 138.7 g what is the mass of water, volume of water and the density of water.
You have a gas occupying 75L at 800 torr and 315K. What is the volume if the pressure is decreased to 600 torr and the temp is changed to 127 C?
A sample of gas is collected over water at a temperature of 35.0?C when the barometric pressure reading is 625 torr. What is the partial pressure of the dry gas, given PH2O = 42.2 torr?
How many grams of LiCl are needed to make a saturate solution with 300 grams of H2O if the molality of the solution is 19.7.
Backside attack on the bromonium ion by a bromide ion results in a trans products. The bromine is added to opposite sides of the carbon-carbon double bond.
Organic chemistry mechanism and conceptual problems involving, Write equations to show how nitronium ions might be formed using a mixture of nitric and sulfuric acids.
Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water to form exactly 550. mL of solution
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