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Two isotopes of carbon, carbon-12 and carbon-13, have masses of 1.993 10-26 kg and 2.159 10-26 kg, Determine the spatial separation between the two isotopes after they have traveled through a half-c
A sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temperature of 112 degrees C. What is the volume of gas, in milliliters
Rearrange the variables in the combined gas law to give an expression for the following: a) T2; b) P2.
which of the following are oxidation reduction reactions? a)Ca(s)+F2(g)>CaF2(s) b)Fe(s)+2HCl(aq)>FeCl2(aq)+H2(g) c)2NaCl(aq)+Pb(NO3)2(aq)>PbCl2(s)+2NaNO3(aq) d)2CuCl(aq)>Cu(s)+CuCl2(aq)
a)identify the substance reduced. b)identify the substance oxidized. c)identify the oxidizing agent. d)identify the reducing agent. e)write the balanced equation for the overall reaction in acid.
A small compass is held horizontally, the center of its needle a distance of 0.140 m directly north of a long wire that is perpendicular to the earth's surface, What direction does the current in th
a student adds 41.9 mL of water to 25.8 mL of a 0.877 M perchloric acid solution. What is the concentration of the diluted solution
The period of the moon (the time for a complete revolution) is 27.32 days, Determine the angular velocity of the moon
classify each of the following as oxidation or reduction: a)electrons are gained b)requires a reducing agent c)Ni(s)>Ni^2+(aq) d)MnO4^-(aq)>MnO2(s) e)Sn^4+(aq)>Sn^2+(aq)
If 24.33 mL of NaOH is required to reach the equivalence point, what was the concentration of HCl solution? All work must be shown for full point values.
An object is located 8.00 cm from a converging lens that has a focal length of 10.0 cm. The height of the object is 0.41 cm. What is the height hi of the image
boiling water at sea level is hotter than boiling water in the mountains. Water used to sterilize surgical equipment is heated to 120 degrees C at 2.0 atm in an autoclave.
A coil that is circular has a radius of 8 cm and has 400 turns it is on a table horizontally, What is the total EMF in the coil as a function of time and in which direction does the current flow
The 1900-turn coil in a dc motor has an area per turn of 1.1 10-2 m2. The design for the motor specifies that the magnitude of the maximum torque is 5.8 N · m, What is the current in the coi
when the zinc coating on an iron can is scratched, rust does not form. use the activity series to explain why this happens.
The maximum torque experienced by a coil in a 0.80 T magnetic field is 8.4 10-4 N · m. What is the length of the wire from which the coil is made
Electrolysis is used to gold plate jewelry made of stainless steel. a) what half reaction takes place to plate Au^3+ on a stainless steel earring? b) is the earring the anode or cathode? c) why is e
An ac generator with a frequency of 30.0 Hz and an rms voltage of 12.0 V is connected to a 45.5-µF capacitor, What is the maximum current in this circuit
A 15.0kg block is attached to a very light horizontal spring of force constant 550N/m, Find the maximum distance that the block will compress the spring after the collision
use the half reaction method to balance each of the following in acidic solution except as indicated
The following half reaction takes place in a lead storage battery used in automobiles: Pb(s)+SO4^2-(aq)>PbSO4(s)+2e^- a)is the half reaction an oxidation or reduction
An air bubble has a volume of 0.500 L at 18 degrees C. If the pressure does not change, what is the volume, in liters, at each of the following temperatures? a) 0 degrees C; b) 425 K; c) -12 degrees
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, even though her uncorrected near point is 84.0 cm from her eyes, How far away is the poster ac
a)is the half reaction an oxidation or reduction b)what substance is oxidized or reduced c)at which electrode would this half reaction occur
The telescope at a small observatory has objective and eyepiece focal lengths of 16.0 m and 12 cm, respectively. determine angular magnification of the telescope