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In a certain experiment, 29.52 mL of 1.21 M HI were added to 35.00 mL of 0.951 M KOH in a simple (coffee cup) calorimeter. Prior to addition of the HI, the temperature of the solutions was 23.50 oC. After the solutions were mixed, the temperature in the calorimeter rose to 30.40 oC. a. Determine the heat transfer (q) experienced by the calorimeter for this reaction. b. Determine the Hrxn per mole of HI. c. Identify whether this reaction is endothermic or exothermic and explain your reasoning.
The degree of ionization for propionic acid in an aqueous solution which contains 4.00 mol C2H5CO2H in 2.00 L is
A 85.0 mL sample of 0.175 M. proprionic acid, HC3H5O2 (Ka = 1.30 X 10-5) is titrated with 0.125 M. KOH. What is the pH after 50.0 mL of the KOH have been added
Problem- What happens to the pressure of a gas if the absolute temperature is halved and the volume is doubled. As much detail as probable is really appreciated
Identify the conjugate base of HSO4 - in the reaction H2PO4- + HSO4- ? H3PO4 + SO42- A) H2PO4- B) H2SO4 C) H2O D) H3PO4 E) SO42-
Question- Which of the following is NOT a factor in determining the biological effects of radiation exposure. The ionizing ability of the radiation
A researcher added 2.06g of the salt sodium nitrate, NaN0subscript 3, to a cylinder containing water. The cylinder diameter is 2 inches and the depth of the water in the cylinder is 4 inches. Determine the concentration of salt in the solution,
A calorimeter with a heat capacity of 4.61 kJ/K contains 18,050 g of freon-12. Benzoic acid is combusted in the calorimeter and liberates 26,400 J of heat energy causing the temperature to rise 3°C. Calculate the specific heat of freon-12 in J/g°C..
Assume a density of 1.08g/mL for the solution. A)Find molarity of solution B)Find molality of solution C)Calculate mass percent of solution
how many calories of heat must be added to raise the temperature of 40 g of water fro 25 Celsius to 50 Celsius
you decide to use methyle red indicator instead of universal indicator for preparation of your pH color standard what effect have on your data?
Osmosis occurs when the solvent molecules move from a solution of higher solute concentration to a solution of lower solute concentration.
Purification of nickel can be acheived by electrorefining nickel from an impure nickel anode onto a pure nickel cathode in an electrolytic cell
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