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Discuss how much energy is released when the15.3 g of steam at 113.0°C is condensed to give liquid water at the 78.0°C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the mol
A hiker of 200 lb having a backpack of 50 lb hikes from 1 camp at 10,000 ft altitude to camp 2 at 13,300 ft in 8 hours. Determine how much net work is done?
Determine the numbers of un-hybridized d-orbitals are on the central atom of SeCl2? Explain what kind of hybrid orbitals does PF3 use in the bond formation?
Two objects attract each other having a gravitational force of magnitude 9.90 x 10-9 N when separated by 19.6 cm. When the net mass of the objects is around 5.09 kg, determine the mass of each?
When and electron relaxes from the n=2 level to the n=1level in the H atom, how do you calculate the energy of the light emitted in (Kj/mol).
Determine the average atomic mass of M when the M2S3(s) is heated in air, it is converted to MO2(s) and a 4.200 g sample of M2S3(s) shows a decrease in the mass of 0.239 g when it is heated in air.
If the dissociation of any H2 molecule were accomplished by the absorption of a single photon whose energy was exactly the quantity required, explain what would be the wavelength in meters?
Determine the pH of the solution after the addition of 29.7mL of NaOH solution? Consider the titration of the 50.0 mL of 0.217 MHN3 (Ka = 2.6 * 10 ^ -5) with 0.183NaOH.
Calculate the molarity of Cl- in this solution when a solution is prepared by dissolving the 23.7g of CaCl2 in the 375 g of water and the density of the resulting solution is 1.05 g/ml.
An electron in hydrogen absorbs a photon having a wavelength of around 19.1 µm and ends up in the n = 8 state. Determine the initial state of the atom?
As number of persons making trip is 13 less capacity of bus, it costs P8 more per student than if bus is filled. Find number of students in trip?
Determine the energy required in Kj/mol to remove the electron from the n=1 level of the hydrogen atom, this ionization is the transition of the electron from the n=1 to the n=infinity level?
A rotating wheel needs 5.00 s to rotate 26.0 revolutions. Its angular velocity at the end of the 5.00 s interval is around 95.0 rad/s. Determine the constant angular acceleration (in rad/s) of the w
Explain what mass of oil must be burned to yield the number of joules in the b if the combustion of oil yields 5.0 x 104kJ/kg.
An uncharged capacitor is joined to a battery of 40.0 V until it is completely charged, after which it is detached from the battery. A slab of paraffin is then inserted among the plates.
Tom evaluated that he biked five times faster than he walked. If complete trip took him 5 hours and 24 minutes, find his walking and riding speeds?
Discuss what would you expect to see if an iron test reagent were added to the reaction producing methyl salicylate and why?
The frictional force decreases the angular speed of the cylinder by a factor of two throughout a time of 4.00 s. (i) Determine the magnitude of the angular deceleration of cylinder.
The density of chromium metal is 7.20 g/cm3. If the electrolytic cell is 46.4% efficient and an external voltage supply delivers 6.0 V, explain how much electrical energy in the kW-hr is expended t
Explain what volume of 16M solution must be diluted with distilled water to prepare 2.25L of 0.10M HNO3?
Determine the molarity of a sodium chloride solution which is having 193 grams of NaCl in the 2.20 liters of solution.
Compute puck A's final speed and puck B's final speed. As well, what fraction of kinetic energy was lost in the collision?
When car traveling north had gone 15 mi, distance between cars was 5 mi more than distance traveled by car heading east. How far had east bound car travled?
Calculate the mass of water requires when a 7.50% KCl solution is prepared by dissolving the enough of the salt to give 100g of solution
Consider f(x)=x1/3. Create the Taylor series through third derivative term for the function. Use the series to evaluate cube root of 550 by expanding about x0 = 512.