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Calculate the qrxn for the reaction that occurs when 25.0 mL of 1.00M HCl are added to 25.0 mL of a 1.00M NaOH in a coffee-cup calorimeter at room temperature (25 degrees celsius). The final temperature of the solution was 31.4 degrees celsius. Assume that the density of the solution is 1.00g/mL and that the Cs,soln is 4.18 J/g X degrees C.
Determine the temperature (in degrees Celsius) above which the reaction is non-spontaneous under standard conditions.
A certain type of sugar dissolves in water, but the solution created does not conduct electricity. Therefore, the sugar does not form ions when dissolved in solution.
If we wish to prepare a 0.50M solution of NaCl how much water must be added to 1.0 mole of NaCl?
The following compounds, listed with their boiling points, are liquid at -10 degrees celsius: butane, -0.5 degrees celsius: ethanol, 78.3 degrees celsius: toluene, 110.6 degrees celsius.
The resulting standard solution was used to titrate 25.0 mL of an unknown diprotic acid. If 18.50 mL of the standard NaOH solution was needed to reach the end point, What is the concentration of the unknown diprotic acid solution
A 1.00 L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 M HCl. The Ka for HF is 3.5E-4
The mixture of hot iron and aluminium is dropped into a beaker containing 100 g of water at 15 oC. What is the final temperature of the liquid water
What is the pH of this buffer solution? (Neglect the volume change that occurs with addition of solid sodium nitrite) b.) Calculate the pH when 2.00 mL of 0.0275 M NaOH are added to 50.0 mL of buffer solution.
which group has the highest rank when precedence is assigned according to the Cahn Ingold prelog system
Manometers can use liquids other than mercury to measure small pressure differences. On a day when the barometric pressure is 764.3 torr, a water manometer, connected between the atmosphere and a glass bulb
Compute the final temperature of solution when 12 g of oxalic acid (COOH)2(s), is dissolved in 113.0mL of water that is initially at 16 C. Explain the enthalpies of formation of oxalic acid in the solid as well as aqueous phases are -826.8 and -81..
Draw lewis structure of NO3Cl include lone pairs of electrons, resonance structures and formal charges (minimized). The basic structure is O=N(-O)(-O-Cl). Where N is double bonded to one O and single bonded to two O atoms. Also, one of the O atoms..
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