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Traveling through an optical cable for which the index of refraction is 1.6, how long does it take a light signal to travel from Los Angeles to Indianapolis, a distance of 2.9×103 km ?
calculate the number of kilograms of refrigerant that must be evaporated to freeze a tray of 17 one ounce ice cubes starting with water at 15C, Heat capacity of water is 4.184 j/gC deltaH of fussion of water = 333 j/g.
A gas container is initially at 47mmhg and 77k. what will the pressure be when the container warms up to room temperture 25 degrees celsius
A beta -emitting radiation source gives 250 units of radiation at a distance of 5.0m.At what distance does the radiation drop to one-tenth its original value
Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..
Question- Calculate the concentrations of H3O+ and SO2?4 in a solution prepared by mixing equal volumes of 0.10M HCl and 0.70M H2SO4 (Ka2 for H2SO4 is 1.2×10?2).
Calculate the specific heat of a metallic element if 314 joules of heat energy are needed to raise the temperature of a 50.0 gram sample from 25 degrees celsius to 50 degrees celsius.
Currently, the same lamps are used by some cavers, and calcium carbide is used to produce acetylene for carbide cannons.
The new electronic configuration of neon -the atomic number of the element with a completed shell -the number of unpaired electrons in fluorine
1. Reference Electrodes The E° value for the following reaction is 0.446 V relative to the standard hydrogen electrode (SHE):
A block of materials has dimensions by 3.2 cm by 8.6 cm by 4.1 cm. Its mass is 632 g. What is the density? Answer in units of of g/cm ^3
At a fixed temperature and pressure, how does the value of the heat of sublimation of a substance compare with that of its heat of deposition?
calculate the zero point vibrational energies for -o-h and -o-d bonds.if a reaction of these bonds involves breaking
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