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If Ecell is found to be 0.24 V, determine the pH of the acetic acid solution when a hydrogen electrode is immersed in an acetic acid solution. This electrode is connected to another which is h
Suppose the specific heat capacity of the coffee is the same as that of water. An ice cube of mass 8.0 g is added to a cup of coffee, whose temperature is 85 C and which contains 120 g of liquid.
Determine the number of disintegrations per minute in a 6.97 mg sample of 238U, by assuming that the half-life is 4.97x109 years.
How many grams of every alloy is needed to produce 80 grams of the new alloy which is 34% silver if amount of 30% alloy utilized is twice amount of 22% alloy utilized.
The lithium reacted totally with the water to form the 250mL of hydrogen gas, at 23 degrees C collected over the water, at which temperature the vapor pressure of water is 21.07 Torr.
Determine the numbers of d-d transitions of different energies can be expected for each? Pd 2+ Cu 2+ both complexes have the square planar structures.
The atom in the center of the face is in contact with the corner atoms. Gold crystallizes in a face centered cubic unit cell that has an edge length of 4.078A.
The female silkworm moth forms a sex attractant called the bombycid, which is composed of 12.68% hydrogen, 80.61% carbon, and the 6.71% oxygen.
Determine the percentage of Na3PO4in the original sample when 2.488g of an impure sample of Na3PO4 are dissolved in the water, and the PO43- ions are precipitated as the Ca3(PO4)2, which is dried,
Oxygen and Nitrogen are pulled down by the gravitational potential, and diffuse the back upwards die to entropy the atmosphere is a giant sedimentation equilibrium experiment.
Describe the phase changes that occur when perfluorohexane is added to a fixed amount of hexane at (a) 23°C, (b) 22°C. Perfluorohexane and hexane show the partial miscibility below 22.
Discuss how much 1.20M NaOH will be required to neutralize the 225 mL of battery acid when the automobile batteries use 3.0 M H2SO4 as an electrolyte.
Determine the precipitate that forms when the aqueous lead (II) nitrate reacts with aqueous sodium sulfate? Explain in detail.
D value is used to determine the time for thermal inactivation of a given organism population under specific sterilization condition in thermal sterilization.
Polonium-210 decays to Pb-206 by the alpha emission. It has the half-life 138 days. Determine what volume of helium at 25 degrees Celsius and 1.2 atm would be obtained from a 25.00 g sample of Po-2
Suppose the density of the water is 1.00 x103 kg/m3 and the air above is at a pressure of 101.3 kPa. Determine the absolute pressure at the bottom of a freshwater lake at a depth of 2
Determine the activity coefficient of H+ in a solution which is having the 0.010 M HCL plus 0.040 M KClO4.What is the pH of the solution?
As the two gases diffuse down the tube, a white ring of NH4X produces 86.3 cm from the ammonia flask. Find out the element X. A flask of ammonia is connected to a flask of an unknown acid HX by a 1.
Determine the oxidation state and the d electron count the number of d electrons for the metal ion in the following coordination complex? [PtCl4]Cl2
Second box with height (x+2) cm has the square base with side (x+1)cm. If two boxes have same volume, determine value of x.
Determine what will be the pH change when the 20.0 mL of 0.100 M NaOH is added to80.0 mL of a buffer solution which is having of 0.183 M NH4Cl and 0.169 M NH3?
Determine the energies of the nuclear spin states of the proton in a magnetic field of 12.00 T. proceed to find out the populations of each of the nuclear spin states at the 12.00 T and an extremel
If the population in the excited level is 1.126 times the population in the ground level, analyze the temperature when a molecule has two electronic states, a doubly-degenerate ground state and an
Estimate the vibration partition function at 3000 K when a molecule has three normal modes with the wave numbers of 1400cm-1, 2500 cm-1, 3500 cm-1.
How can obtain an expression for the maximum work the gas can do in the expansion if n moles of the gas undergo is other male expansion at the temperature T from an initial volume V1