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Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are
A Ferris wheel with radius 38m is driven by a motor that exerts a force on the wheel 1m from the center. find the normal force at the bottom of the wheel's trajectory
When 26.0 mL of 0.565 M H2SO4 is added to 26.0 mL of 1.13 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and K
A motorcycle and rider have a total mass of 252 kg the rider applies the brakes, What is the net force (in Newtons) on the motorcycle and rider combination
Phil is standing on a third floor balcony, 10m above the ground. Where does the ball hit the ground
Rahm was coasting on interstate highway I-35 from Wichita to Kansas City at 65 mph. How far from the accident does he come to a stop
a block of mass M hangs at rest. The rope that is fastened to the wall is horizontal and has a tension off 52 N. what is the angle theta
A ray of light is incident on the surface of a block of clear ice at an angle of 35.0 degrees with the normal. Find the angle between the reflected and refracted angle
A 28.7 g sample of ethylene glycol, a car radiator coolant, loses 676 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.
Calculate [OH-] in the following aqueous solution at 25 deg C: [H3O+] = 3.6×10^?2 M? I know you have to divide 1x10^-14 by the 3.6x10^-2 and the answer I got was 2.8x10^-17 but it said my answ
Tritium with a half-life of 12.3 years is used to verify the age of expensive brandies. how many years ago was it produced
A thyroid cancer patioent is given a dosage of 131I, What faction of the dosage will still be in the patient's thyroid
What is the change in internal energy (in J) of a system that absorbs 0.532 kJ of heat from its surroundings and has 0.225 kcal of work done on it? = j
Find the wavelength of red light in glass if the index of refraction of glass is 1.66. Recall that the wavelength of red light in a vacuum is 700 nm
Nitrogen and Oxygen gases may react to form nitrogen monoxide. At 1500 C, Kc=1.0*10-5. If .030 mol N2 amd O2 are sealed in a 1.0 L flask at 1500 C. what is the concentration of NO when equlibrium is
An electron in a vaccuum is first accelerated by a voltage of 10,000 volts, find the force of the electron due to the magnetic field
The temperature inside a balloon is raised from 25.0 degrees C to 250.0 degrees C. If the volume of cold air was 10.0 L, what is the volume of hot air
A sled and rider with a combined weight of 67 kg are at rest on the top of a hill 26 m high. What is their total energy at the top of the hill
What is the sum of the coefficients when the following equation is balanced using the lowest, whole numbered coefficients
A 40-kg firl and an 8.4-kg sled are on the surface of a frozen lake, 15 m apart. By means of a rope the girl exerts a 5.2-N force on the sled, How far from the girl's intial position do they meet
What is the enthalpy for reaction 1 reversed. Reversed equation: CO2-->CO+(1/2)O2 Express answers in kJ per mole.
Silver sulfide is the tarnish that forms over time on polished silver. If a saturated aqueous solution of it at a certain temperature has a [Ag+] = 4 x 10^-17, what is the solubility product of silv
A cylinderical wooden log rolls (without slipping) down a small ramp. The log has a radius of 15 cm, a length of 2.0 m, and a mass of 78 kg. What is the log's total kinetic energy at the bottom of th
Calculate OH- for each of the following solutions, and indicate whether the solution is acidic, basic, or neutral. h+ = 2.7×10?3.
A series RLC circuit is connected across a 10.0 kHz source. The 1.2 H inductor and 1000 ? resistor are fixed whereas the capacitor is variable. At what capacitance will the current in the resistor b