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a bone is found in your backyard you decide to date it and discover is has an c-14 activity of 0097 bq per gram of
a block of mass m1 is 5 kg it is lying on a frictional horizontal surface the block is connected by a massless string
a what is the cell potential for the following standard cell crs crno33 sncl2 sncl4 pts b do you expect this cell to
in our kinetics lab we used sodium thiosulfate as a mild reducing agent explain why this reagent would be a reducing
an ashtray slides across a table with a speed of 06 ms and falls off the edge if it takes 04 s to reach the floor how
a ball is thrown horizontally with a speed of 100 ms from the edge of the top of a building of height 196 m and later
metals ions can also be placed in a spectrochemical series in this case larger effective nuclear charges generally lead
calculate the energy change in j for 1 gmol of h2o 1 0 to 100kmh 2 0 to 100m 3 at 100c from 01 bar to 1 bar 4 at 5bar
you have a parallel plate capacitor with circular plates of radius 1 cm the distance between these plates is 4 cm and
a 500 ohm resistor 300-mh inductorr and 1100-uf capacitor are connected in series with a alternative voltage source
molten magnesium chloride is prepared as a working fluid for a solar power tower process in a smelting tank operating
two 42 ohm resistors are connected in series to a 12 volt batterywhat is the total resistance of the circuitwhat is the
using standard reduction potentials from your textbook calculate the delta g for the oxidation of ethanol using nad as
a uniform disk with a mass of 10 kg and radius of 20 cm is rotating on frictionless bearings with a rotational speed of
we vaporize 5kg of water at 100c the latent heat of vaporize of water is 226x106jkga the value of the waters
computational chemistry-----what two predominant effects govern most chemical reactions and properties what are the two
a gas cylinder of volume 26 liters contains an ideal gas at temperature 27 degrees c and pressure 1920 kpa some of the
a boat takes 300 hrs to travel 250 km down a river then 600 hrs to return the car travels the same speed with respet to
infrared spectroscopy----how would you know if you used too much liquid and what would you do about it what will damage
a large crate is pulled along a horizontal path at a constant speed by a cable that is inclined at an angle of 20deg
thin-layer chromatograph------describe how the rf for a compound will change as the developing solvent is made more
the space shuttle is in a 250 km high circular orbit it needs to reach 610 km high circular orbit to catch the hubble
thin-layer chromatography - explain how you should apply a spot of compound to the tlc plate in order to get the best
when would you do a hot filtration why do you wash your crystals after you collect them by
an elevator ascends 200m with maximnum speed of 50 ms its acceleration and deceleration both have a magnitude of 10 ms2