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A student mixed 75.0 mL of water containing .75 mol HCL with 75.0 mL of water containing .75 mol of NaOH at 25C in a foam cup calorimeter. The temperature of the resulting solution increased to 35C. How much heat in kilojoules was released by this reaction?
Does ammonium chloride added to water produce a simple solution, does the ammounium chloride dissociate or does a chemical reaction occur resulting in a new set of compounds.
If we took EXACTLY 1.00 ml of a 1.000 M solution of Cu(NO3)2 and placed it in 99.000 ml of water and mixed it, then took 2.00 ml of this solution and placed it in 18.000 ml of water.
What polypeptide would be synthesized from the following template strand of DNA:3' CGG AGA CGG ACG 5'
A buffer is prepared by mixing 429 mL of 0.255 M NaOH with 677 mL of 0.795 M sodium bicarbonate (NaHCO3). Given that the Ka1of H2CO3 is 4.5 x 10-7
Calculate the oxygen content of the plasma in mM! 1 ml plasma dissolves 24 uL oxygen at 38 degrees C if the partial pressure is 103 kPa.
Calculate the pH and the concentrations of all species present in a 0.19-M solution. The acid dissociation constants are K1 = 5.9 10-2 and K2 = 6.4 10-5.
If we attemp to add a second nitogroup to methyl m-nitrobenzoate, would the reaction be faster or slower than the first nitration
A solution of Na3PO4 is added dropwise to a solution that is 0.0494 M in Ag+ and 0.00318 M in Cu2+. The Ksp of Ag3PO4 is 8.89e-17. The Ksp of Cu3(PO4)2 is 1.4e-37. (a) What concentration of PO43- is necessary to begin precipitation
Chlorine dioxide gas is used as a commercial bleaching agent. One method of preparing ClO2 is the reactiong of chlorine gas with sodium chlorite as:
A solution of barium hydroxide at 25C is 0.125 M Ba(OH)2. What are the concentrations of hydronium ion and hydroxide ion in the solution
Calculate the heat of formation of propane given the heat of formation of H2O (liquid) is -285.3 kJ/mol and the heat of formation of CO2 is -393.5 kJ/mol.
tablets of ki were distributed to people living around chernobyl one week after the nuclear reactor explosion occurred
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