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How much heat in kilojoules is required to warm 10.0 of ice, initially at -10.0, to steam at 125. The heat capacity of ice is 2.09 and that of steam is 1.84 .
Calculate the quantity of gas, in moles, if 127 L at 55.0 C has a pressure of 11.35 kPa.
A sample of oxygen gas is collected over water at 25 degrees C and a total pressure of 637 torr. The volume of the gas collected is 500.0 mL. What mass of oxygen is collected? The vapor pressure of water at 25 degress C is 23.8 torr.
Bromine addition to trans-cinnamic acid, During bromine addition to trans-cinnamic acid, why is it necessary to maintain excess bromine in the reaction mixture
"A student titrated a 10 mL sample of a saturated solution of borax. If the titration required 23.95 mL of 0.2556 M HCL to reach the endpoint, calculate the equilibrium molar concentration of B4O5(OH)(4 in the saturated solution"
if a sample of gas at 25.2 C has a volume of 536 mL at 637 torr, what will its volume be if the pressure is increased to 712 torr.
An aqueous solution of unoxygenated hemoglobin containing 5 g of protein (M= 64000 g/mol) in the 100cm3 of solution is placed in an insulated vessel.
Calculate the ratio of the hydronium ion in acid rain to that in normal rain.
Explain the use of beta-alanine? Is it used as a H+ source, or something else? Why can malonic acid be reacted in V-D modification, while only its ester can be reacted in standard Knoevenagel condensation conditions?
Calculate ?Hºrxn for the hydrolysis using bond energies. c. Why are the two values relatively close for the hydration in part "a" but not close for the hydrolysis in part "b"?
Gaseous HBr has an absorption band centered at about 2645 cm-1 consisting of a series of lines approximately equally spaced with an interval of 16.9cm-1.
How long would it take for 1.50mol of water at 100.0 °C to be converted completely into steam if heat were added at a constant rate of 21.0 J/s?
How many grams of KHP are needed to exactly neutralize 27.4 mL of a 0.235 M potassium hydroxide solution ?
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