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(a) Under what condition will the enthalpy change of a process equal the amount of heat transferred into or out of the system?
(b) During a constant-pressure process, the system releases heat to the surroundings. Does the enthalpy of the system increase or decrease during the process?
(c) In a constant pressure process, ?H = 0.What can you conclude about ?E, q, and w?
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A beaker with 200 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 . A student adds 7.20 mL of a 0.490 M solution to the beaker. How much will the pH chan..
determine the kelvin temperature required for a 0.0470 mol of gas to fill a balloon to 1.20 l under 0.988 atm of
The IR spectrum of HCN shows three absorption bands at 3312 cm-1, 2089cm-1, and 712 cm-1. Assuming HCN is linear, assign vibrations to the three absorption bands
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aluminum has a face-centered cubic unit cell. if the atomic radius of aluminum is 125 pm what is the edge length of the
If the desired dose is achieved in 5 minutes at the beginning of the calendar year, how much irradiation time is needed to keep the dose the same three months later
Explain what is the pH of a 1.00 L solution which primarily has 0.051 mol acetic acid and 0.029 mol sodium acetate once 0.006mols of NaOH has been added. Ka for acetic acid is 1.8x10-5. Explain what are the new concentrations of weak acid and weak..
Determine the geometry or shape of a MgH2 molecule. Check those statements which are correct. Help: VSEPR Choose at least one answer. a. There are 4 valence electrons. b. There are 8 valence electrons.
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