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What are the advantages of laser? Can you explain why blue laser technology is the most challenging wavelength to develop in the photonics industry? Google the internet, give a lasing medium used for blue laser.
An iron bar of mass 885 g cools from 94°C to 5°C. Calculate the heat released (in kilojoules) by metal.
a specific heat of 0.061 cal/g C and at a temp of 99.1C is added to 85.0 grams of water at 23.5C What will be the final temp of the water when equilibrium is reached?
Compound A is unchanged when treated with dilute base, but treatment of A with concentrated NaOH and heat gives a new compound B (C10H19N) that decolorizes Br2 in CCl4. Compound B is identical to the product obtained from the reaction sequence bel..
imagine you are a water molecule, describe your travels through the many you have been and might go in the future as you make your way around the hydrologic cycle time after time. Include travels through organisms.
Predict the species that will be oxidized first if the following mixture of molten salts undergoes electrolysis
What term describes a solution in which the solute concentration exceeds its equilibrium concentration under the prevailing conditions?
A flask that can withstand an internal pressure of 2491 torr, but no more, is filled with a gas at 21.0°C and 758 torr and heated. At what temperature will it burst?
calculate the density and # of moles of a 10% Bromine Solution used in an experiment. Does the 10% refer to v/v or g/v in solution? I used 350 ul of the Bromine Solution
what is the vapor pressure of a solution made by adding 164g flycerin to 338mL H2O at 39.8 C. The vapor pressure pf pure water at 39.8 C is 54.74 torr
A volumetric pipette was found to deliver 5.01 mL of ethanol at 24°C. The mass of the ethanol was measured to be 3.9462 g. What is the density of ethanol at 24°C
Identify the two important classes of catalysts. Choose a catalyst that exists in the human body. Explain its importance and how it works.
on a laboratory shelf was of undetermined concentration. If the pH of the solution was found to be 2.39, what was the original concentration of the acetic acid
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