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Calculate the crystal field splitting energy for this ion in kJ/mol. A chemist claims to have found a complex ion where the most intensely absorbed the light is 337.0 nm.
The certain right triangle has hypotenuse which is 13 feet long, and one leg which is five feet long. If θ is angle opposite five-foot leg, determine values of all six trigonometric ratios for &
A 12.2-g sample of NH4NO3 is dropped into a constant pressure calorimeter having 175 g of water at 23.5 degrees C. Discuss what temperature will the water reach, assuming that the calorimeter
Two liquids have vapor pressures. The compound A has 0.690 atm and the compound B has 0.350 atm at the room temperature. Suppose that a solution is prepared that is 0.33 mole fraction in the more vo
ΔH= -368 kJ/mol rxn. Determine the numbers of grams of sodium hydroxide can be made if the 255 kJ of heat is released?
The ceiling fan with 20-inch blades rotates at 40 revolutions/minute. Determine angular speed of fan, in rad/min, and compute linear speed of tips of blades in in/min.
What will be the equilibrium mole fraction of H2O if a mixture of 1 mol of Co and 5 mol of H2O is passed over a catalyst at this temperature and a pressure of 2 bars?
The molar volume of liquid water is 0.019x10-3m3/mol, the molar enthalpy of vaporization 40.69KJ/mol, and the molar volume of steam is 30.199x10-3m3/mol, all at 100oC and 1 atm = 1.01325 bar.
Two points where initial and terminal sides of angle intersect circumference of circle are 16 inches apart. That is the linear distance, not arc length. Find area of circular sector defined by angle
Describe the crystal field splitting energy for this ion in kJ/mol when a chemist claims to have found a complex ion where the most intensely absorbed light is 337.0 nm.
Estimate how much energy is released or absorbed by the reaction shown in each case. Determine whether the following reactions are exothermic or endothermic.
The Clapeyron equation relates dp and dT at equilibrium, the change in enthalpy is given by dH =CpdT + Vdp, and so in combination the two equations can be used to identify.
The isoceles triangle has the area of 36 square millimeters, and angle between equal sides is 2π/3. Determine lengths of two equal sides.
What would be the final temperature of the calorimeter if it's initial temperature were23.0oC or if 2.00g of iron metal are reacted in a calorimeter with a heat capacity of 500J/oC.
What is the molarity of each ion when the molar solubility of M2X is 5 x 10-5 M? How do you setup the calculation to identify the Ksp? What assumptions must you make about the dissociation of &nb
Determine the electron configuration for zinc? Determine the numbers of unpaired electrons are in Phosphorus 3? Determine the numbers of double bonds are in the Hydrogen?
The Ag atoms produced a uniform gray color that reduces the glare. Calculate the minimum wavelength that can induce this process if the energy needed for the reaction if 248 kJ/mol.
How can find out the empirical formula of compounds. Compound A is branched and optically active and contains C, O, and H. A 1.00 g sample burns in excess O2 to yield 2.5 g CO2and1.23 g
Discuss how do you convert R-2-pentanol to the R-2-methoxypentane? Discuss How do you convert R-2-pentanol to the S-2-methoxypentane?
Assuming a 70.% yield in the overall reaction, discuss what mass of limestone is needed to remove all the sulfur dioxide produced by the combustion of 8.5*104kg of coal that is0.33 mass % sulfur?
Estimate the energy needed to excite an electron from then=8 orbital of hydrogen to the n=19 and determine to what portion of the EM spectrum does this wavelength correspond?
Calculate the maximum amount of aluminum phosphate that is precipitated by adding an excess of aluminum nitrate solution to 50 mL of 1.53 M potassium phosphate by using this equation.
At 25°C a certain batch of fire flies were observed to "flash" at the rate of 16.6 times per minute and at the lower rate of 5.5times a minute at a temperature of 15°C.
The ship leaves port of Miami with the bearing of S80E and the speed of 15 knots. After one hour, ship turns 90 degrees toward south. After two hours, maintaining same spped, find bearing to ship f
A mixture of 175 g of iron(III) chloride (162.2 g/mol) and 41.0 g of magnesium (24.31 g/mol) is allowed to react. Determine what mass of magnesium chloride = 95.21 g/mol is produced?