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Given the following information: 3Fe(s) + 4CO2(s) > 4CO(g)+ Fe3O4(s) ΔH = 12.5 Fe2O3(s) + 3CO(s) >2Fe(s) + 3CO2(g) ΔH = -28.0kj
(i) When the solar intensity is around 1.00 kW/m2, determine the intensity on the absorbing plate? (ii) Determine the maximum magnitudes of the fields vector E and vector B?
In a string of amino acids or peptide, determine how can you find out the charge of the peptide at a specific pH? Is there a specific equation?
Use rule of thirteen to determine a molecular formula and an index of hydrogen deficiency. A substance has molecular mass of 342. Then adjust the compound to 12 carbons using oxygen.
They both reach opposite end from where they begun, turn around and and cross again at the point 18 yards from B. They are both traveling at the constant speed (unknown for each), find total length
When the capacitor breaks down for peak voltages in surplus of 7.0 x 10^2 V, determine the maximum source voltage amplitude if the circuit is operated at resonant frequency?
5.00g of glucose, C6H12O6 is dissolved in the 500.0 grams of acetic acid. Determine the new freezing point and the boiling point for the solution where the Kf acetic acid = 3.90, and the K
(i) Compute the meteorite's loss of energy (as a positive number in joules) that would have been related with the vertical impact. (ii) Deduce the energy as a multiple of the explosive energy of 1 m
Calculate the pH of a mixture of a acetic acid and sodium acetate when the ratio of (CH3COO)/(CH3COOH) is 4.0 where the Ka of the CH3OOH is 1.8 x 10^-5.
The ultimate fate of our sun is possibly to collapse to a white dwarf state after it exhausts its nuclear fuel, having approximately the mass of the sun, but the radius of the earth.
In a Young's experiment, the distance among the slits is 2 mm and the distance from the slits to the screen is 6 m. Determine the distance which the top slit should be moved up in order to generate
Also, Lionel agrees to begin 15min after Robert. If Lionel bikes at 17km/h and Robert at 14km/h, how long it will take Lionel after he begins biking to overtake Robert?
Determine the numbers of moles of sodium hypobromite, NaBrO, should be added to 1.00L of 0.200M hypobromous acid, DBrO(ka=2.5*10-9), to produce a buffer solution of pH 8.80?Suppose that no volume chan
The objective of a telescope consists of a focal length of 50 cm and the focal length of the ocular is 2 cm. Determine the angular magnification of the telescope? By using the ray diagram of (princi
Andy having mass 80 kg employs a 3 meter-long-rope to pull Bob of mass 60 kg across the floor u = 0.20 at a constant speed of 1.0 m/s. Bob signals to Andy to stop by ‘plucking’ THE rope,
At 25°C for each of the following voltaic cells, write down the balanced half-reactions, the overall balanced reactions, and determine the cell potentials.
A battery of 12.6 V is in series having a resistance of 0.364 ohm and an inductor. (i) After a long time, determine the current in the circuit?
Calculate the equilibrium constant to support your answer. Is the overall cell reaction reactant or product favored at 25°C?
(i) Determine how many turns of wire must the coil have to generate the desired emf? (ii) Determine the maximum current induced in the coil.
Determine the numbers of grams of Fe(OH)2 are produced at the anode when the battery produces a constant current of the 0.250 A for 40.0 min?
Determine the overall cell potential for the reaction when the concentrations of ethanol, if the standard half-cell potential for the reduction of acetic acid to ethanol is 0.058 V, acetic aci
Both speakers produce sound waves that travel directly from the speaker to point P. i) Determine the values of x at which destructive interference take place at point P?
Write down the standard shorthand cell notation for the voltaic cell. Determine standard cell potential for the voltaic cell
The school is 18 3/4miles south of Pittsburgh and the house is 44 1/4 miles south of Pittsburgh. Write the equation to find distance d1 from Pittsburgh after t hours.
Determine the change in the kinetic energy of the sled. Determine the speed of the sled after it has traveled 3 m.