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You would like to measure the heat of neutralization of an acid with a base. You mix 100 mL each of 0.57 M HCl and 0.57 M KOH, both at a temperature of 23.3 °C in a calorimeter cup equilibrated to that same temperature. After following the temperature change for 10 minutes and extrapolating it back to the time of addition, you find that the "final temperature" after mixing was 26.7 °C. Previously you measured the heat capacity of the calorimeter cup (Ccup) to be 99 J/°C.What is the heat absorbed by the two solutions, qsoln?2845. J
What is the heat absorbed by the calorimeter cup, qcup?
What is the heat change for the neutralization reaction, qrxn?
What is the ?H for the neutralization?
Calculate the concentration of dissolved oxygen at 20 degree Celsius if the amount of dissolved O2 is 9.07 mg/L
A solution containing potassium bromide is mixed with one containing lead acetate to form a solution that is 0.013M in KBr and 0.0035 M in Pb (C2H3O2)2.
Calculate the pH of a buffer tht contains 0.60M ammonium chloride
The other 2 ions are just spectators. Given that the Ksp of CaF2 is 3.2x10-11, Will the resultant solution be saturated, undersaturated, or supersaturated
LDA is added to a solution containing methyl pentanoate. After this reaction has gone to completion, 2-butanone is added. Once this reaction is completed an acid workup is performed.
Write the defining expression for the conditional solubility product constant, Ksp'. Than For the Ca2+ and F- ions, write the mathematical relations defining activity of each ion in terms of its concentration and activity coefficient.
the oxidation of nitric oxide to nitrogen dioxide is2nog o2g reg 2no2gif 100.0 ml of no at stp reacts with 400.0 ml of
A chemist must prepare 0.9 L of sodium hydroxide solution with a pH of 13.40 at 25 C. He will do this in three steps: Fill a 0.9 L volumetric flask about halfway with distilled water
Can someone help me locate the tetrahedral stereocenters and how many sterioisomers are possible for the following structures please
The total molarity of acid and conjugate base in this buffer is 0.100 M . A student adds 5.90 mL of a 0.380 M HCl solution to the beaker. How much will the pH change. The pKa of acetic acid is 4.760.
Find the pH and volume (mL) of 0.0372 M NaOH needed to reach the equivalence point(s) in titrations of 20.0 mL of 0.0892 M H2SO3 (two equivalence points)
a gas has a volume of 25 ml when its pressure .056 atm what will the volume of the gas be at the pressure of 1.00 ?
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