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A liquid begins to appear on the inside of a closed flask. At first glance before the liquid began to appear, you might have thought the flask was empty.
You will be using the observations given in the scenarios i - vi below to determine which of the following is true for G (a - c), which of the following is true for S (d - f) and which of the following is true for H (g - i).a) The sign of G is positive.b) The sign of G is negative.c) Cannot determine the sign of G from the information given.
d) The sign of S is positive.e) The sign of S is negative.f) Cannot determine the sign of S from the information given.
g) The sign of H is positive.h) The sign of H is negative.i) Cannot determine the sign of H from the information given.
What is the half-life of this reaction assuming first-order kinetics?
A voltaic cell is constructed that uses the following reaction and operates at 298 K. (Ered Ni+2 is -0.277) Zn(s) + Ni2+(aq) Zn2+(aq) + Ni(s) (a) What is the emf of this cell under standard conditions?
The energy levels of hydrogenlike one-electron ions of atomic number Z differ from those of hydrogen by a factor of Z^2. Predict the wavelength of the transition
Why don't we observe the deBroglie wavelength of everyday macroscopic objects (such as a moving car or a thrown baseball)? The wavelength is too small relative to the size of macroscopic objects to be observed.
The dissociation constant (Kd) for the complex is 4.00E-7. Find the absorbance at 550 nm of a solution prepared by mixing 50.0 ml of 2.00 mM A and 50.0 ml of 5.00 mM B. assume the absorbance is measured with a 1.00 cm cuvette.
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.75 cm^2 .
Standardization of Na2S2O3, Added 0.12 g KIO3 and dissolved in 75 mL of distilled water. Added .20 g of KI to solution, then added 10 mL of 1M HCl and immediately titrated with thiosulfate solution (made by weighed 25 g of Na2S2O3-5H20
Carbon monoxide and oxygen both can bind to hemoglobin, an important molecule for oxygen transfer in our body. In addition, they compete in binding to this same molecule
What is the mole fraction of ethanol, CH3CH2OH, in an aqueous solution that is 20.0% ethanol by mass? 0.150
If the initial temperature of the water in the calorimeter was 20.25 °C, calculate the calorimeter constant (in J/K) for the coffee cup calorimeter.
Give the overall reaction for the dehydration of cyclohexanol.2. IR spectroscopy will be used to verify the isolated compound is the correct compound (cyclohexene). What stretches (presence and absence) will distinguish the product
Separation of acetone from water by using MIBK - How much MIBK must be used if the final acetone concentration in the water-rich phase is 5 wt%?
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