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20 mL of 4.0 acetone + 10mL 1.0 M HCl + 10 mL 0.0050 M I2 + 10 mL H2O
what is the initial concentration of acetone, H+ and I2 in the reaction mixture?
it took 120 seconds for I2 color to disappear from the reaction mixture, what was the rate of reaction?
how would you write; rate= K(acetone)^m (I2)^n (H+)^p as it would apply to this reaction mixture?
Suppose you pick up a 15-pound ball of iron (such as a "shot-put" ball at a track event). The iron ball has the same temperature as the atmosphere (26 °C). How many joules of heat energy must the iron ball absorb to reach the temperature of your b..
A 1.08 g sample of caffeine, C8H10N4O2, burns in a constant-volume calorimeter that has a heat capacity of 7.85 kJ/K. The temperature increases from 298.55 K to 303.37 K. What is the molar heat of combustion of caffeine (in kJ).
sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
what is the boiling point of the solution in which you are going to cook spaghetti if it contains 58.0 g of nacl
Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 8.00 of aluminum sulfate, Express the number of moles of Al, S, O, and atoms numerically, separated by commas.
provide a detailed "curved arrow" reacton mechanism for each step in the indium mediated Barbier Reaction of cinnamyl bromide 1 with benzaldehyde
What mass of water can be heated from 22?C to 100 ? C by burning this piece of coal? Answer in units of g
Then 5.0mL was withdrawn and diluted to 200mL. The spectrum of this solution exhibited a maximum absorbance of 0.642 units at 554nm in a 2cm cell. The molecular absorbance , e, is 423 M-1cm-1. What is the mass of the analyte in grams
How many grams of dry NH4Cl need to be added to 1.80 L of a 0.800 solution of ammonia, NH3, to prepare a buffer solution that has a Kb of 8.87? for ammonia is 1.8E-5.
Calculate the final volume of the gas,and express your answer in milliliters and determine the pressure in the flask if the temperature is raised to 25 degree celcius?
A graduated cylinder contains 133 mL of water. A 17.0 g piece of iron (density = 7.86 {g/cm^3}) and a 23.0 g piece of lead are added. What is the new water level in the cylinder?
A student measures the standard enthalpy change for reaction (C2H4(g) + H2O(g) CH3CH2OH(g)) to be -52.8 kJ :Calculate the standard enthalpy of formation.
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