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At 600.0 K the rate constant is 6.1 x 10-8 s-1. What is the value of the rate constant at 800.0 K.
If 7.15 mL of 0.101 M NaOH solution is required to neutralize 0.178 g of an unknown acid (monoprotic-HA), what is the molecular weight of the unknown acid?
The decomposition of N2O5 takes place in carbon tetrachloride at room temperature according to the equation:
1.05 g of methyl benzoate is reacted with excess nitric acid in sulfuric acid. What is the theoretical yield of the nitro product in grams? What is your percent yield if you isolate 1.12 g of produc
What mass of solid CaO is needed to remove the sulfur dioxide from 1.0 *10^6 m^3 of air having an SO2 concentration of 1.5*10^-9 M ? Assume that the reaction leading to removal of the sulfur dioxide
Write a balanced net ionic equation for the reaction that takes place during titration.
If barium needs a minimum frequency of 6.07x10^14 s-1 to eject electrons, calculate the kinetic energy of the electron emitted when barium is illuminated with a wavelength of 385 nm.
What is the wavelength (in nm) of radiation that has an energy content of 1.81X10^3 kJ/mol? In which region of the elctromagnetic spectrum is this radiation found?
A ruby laser produces radiation of wavelength 633 nm in pulses with a duration of 1.00*10^-9s. If the laser produces 0.475 J of energy per pulse, how many photons are produced in each pulse?
At 445 ºC calculate the equilibrium concentration of HI when 0.500 M HI, 0.0200 M H2, and 0.0200 M I2 are placed in a sealed flask and allowed to reach equilibrium. Kc for this reaction is 50 a
The entropy increase after mixing 2 moles of oxygen 1 mole of nitrogen, which were prepared at the same pressure and temperature, is (in J/K). (Pretend oxygen and nitrogen are ideal gases)
During a lightning flash, 18 C. of charge moves through a potential difference of 8.4E+07 V. How much electrical potential energy is released?
A particle P with mass 9kg has position vector r(r=2.5m) and velocity v(v=45.0 m/s). It is acted on by force F (F=10.0 N). All three vectors lie in the xy plane. About the origin, what is the z-comp
Is a transformer has 100 primary turns and 200 secondary turns. What is the current in the secondary coil if the primary coil has 10 A current?
What is the maximum torque on a coil with a magnetic moment of 5.6 A.m^2, when it is placed at an angle of 90 degrees relative to a magnetic field where B= 0.15 T?
Question: In a plane radio wave the maximum value of the electric field component is 5.86 V/m. Calculate (a) the maximum value of the magnetic field component and (b) the wave intensity.
Neglect air resistance and determine the kinetic energy of the ball at its highest point.
Below is an example of a simple household circuit with 3 identical bulbs with resistance of 100 O each. Assume that this is the standard household 120 V circuit. What is the current running through
Two spherical drops of water each carry a charge of 3.00E-11 C. and a potential of 430 V. at their surface. If the two drops combine to form a single spherical drop, what is the potential (in volts)
Consider a system of two balls in freefall (neglect drag). One ball has a mass of 5kg and the other of 7kg. What is the value of the time derivative of the system's total momentum at any time during
On a frozen pond, a 10kg sled is given a kick that imparts to it an intial speed of v0 = 2.0m/s. The coefficient of the kinetic friction between sled and ice is Mk = 0.10. Use the work-energy theore
A 1.3-nF capacitor charged to 90.0 V and a 7.5-nF capacitor charged to 40.0 V are connected with the negative plate of each connected to the negative plate of the other. What is the final charge on
Use the energy conservation to find the distance the block slides before coming to rest.
The note "middle C" on a piano has a frequency of 512 Hz in the fundamental tone. Suppose that the string that produces this note has a mass of 50g and a length of 10cm between its fixed ends. What
How much energy can be stored in a capacitor with two parallel plates, each with an area of 15.0 cm2 and separated by a gap of 2.9 mm, filled with porcelain whose dielectric constant is 7.9, and hol