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Determine the numbers of grams of each reactant remain? In the reaction of potassium chlorate with sulphuric acid and iron, the products are: iron (III) chlorate, potassium chloride, water, and pota
Explain how much energy is needed to raise 1 gram of water (as ice) from -15 degree Celsius to 110 degree Celsius (as steam)? Remember to account for the latent heat needed for the ph
Calculate the binding energy of the electron in the kJ/ mol? KE =(1/2)(mv2); 1 electron volt eV = 1.602 *10-19J] An X-ray photon of wavelength 0.932nm strikes a surface. The emitted electron has a kin
A large electromagnet consists of a 28 T magnetic field among its poles. Determine the magnetic energy density among the poles?
Determine arc length corresponding to given angle (in degrees) on the circle of radius 2.5. The angle of 23 degrees has the arc length of how many units.
Explain the final temperature when both metals are placed in the water at 20 degree Celsius? A piece of gold weighing 10.0g(c=0.129 J/g-K) is heated to100.0 degrees Celsius.
Determine the volume of methanol formed in the answer (D) above. The density of methanol is 0.7914 g/mL. A small car of of 4- cylinder engine averages 24 miles per gallon in typical city driving.
What must the diameter of the axle be in order to increase the buckets at a steady 1.65 cm/s if it is turning at 7.8 rpm?
A tuning fork of 440Hz is held above the closed pipe. Determine the spacing between the resonances if the air temperature is 20 degrees C. Compare this spacing to the spacing generated on an open pi
The transverse waves travel with a speed of 20m/s in a string beneath a tension of 6N. Determine what tension is needed to generate a wave speed of 30m/s in the similar string?
Determine the numbers of moles of H2O form when the butane is burned totally? Determine the numbers of total molecules of gas form when all the butane burns?
Determine the fundamental frequency (corresponding to the transition among the ground and the first exited states, incm-1), and zero point energy (in J). The spring constant of 79Br79Br is 240Jm-
A bullet of 3.40 g moves with a speed of 160 m/s perpendicular to the magnetic field of earth of 5.00 x 10-5 T. When the bullet possesses a total charge of 13.5 x 10-9 C, by what distance will it be r
Determine the vibrational period and the spring constant. In the infrared spectrum of 1H79Br, there is an intense line at 2630 cm-1, which is assigned to the transition among the ground and the f
Describe the aromaticity of the difluorofulvene by inductive effect, hackle's rule? Also, discuss why does anyone should care about making difluoromethylene compound?
A charged particle having mass 0.0100 kg is subjected to the 4.0 T magnetic field that acts at a right angle to its motion. When the particle moves in the circle of radius 0.10 m at a speed of 5.0 m
Determine the probability that balls have different colours? What combination of colours is most probable? Find probability of the combination?
White light having wavelengths from 400 nm to 750 nm falls on the grating having 9000 lines/cm. Determine how wide is the first-order spectrum on the screen 2.70 m away?
Supposing no external forces are acting, answer the given: i) Determine the expression for the final velocity w after the collision.
Buffer is prepared by mixing the 184 ml of 0.500 L of 0.400 M sodium acetate and 0.442 hydrochloric acid. (Ka=1.8 x 10-5) Determine the balanced reaction that describes the buffer that was formed.
The two charges q1 = 4 µC, q2 = -40 µC, are L = 13 cm apart. A third charge is to be positioned on the line among the two charges. Determine how far from q1 must the third charge be posi
Using the standard enthalpies of formation, determine the quantity of heat formed when the 2.7 g of butane is totally combusted in the air under the standard conditions. Many cigarette ligh
Determine the half reaction for the deposition of the silver where the molar mass of Ag is 107.9 A constant the electric current deposits 0.365 g of the silver metal in 12960 seconds from a solutio
When we define the gravitational potential energy U to be zero for an infinite separation of Earth and satellite, determine the ratio?
Determine the frequency associated with the light of wavelength 656 nm. (This corresponds to one of the wavelengths of light which is emitted by the hydrogen atom.)