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A copper wire (density = 8.96 g/cm3) has a diameter of 0.50 mm. If a sample of this copper wire has a mass of 48 g, how long is the wire?
a 25.0-ml sample of 1.00 m nh3 is titrated with 0.15 m hcl. what is the ph of the solution after 15.00 ml of acid have
What is the minimum number of conversions that need to be done across a peak to achieve a reproducibility (relative standard deviation) of less than 1% for repeated measurements of the same peak
The radioactive decay of thallium-206 to lead-206 has a half life of 4.20min. Starting with 4.10 x 10^22 atoms of thallium-206
describe the mechanism of the reaction for the production of tetrachloromethane
If you start with 0.048 M I2 at this temperature, how much will remain after 5.29 s assuming that the iodine atoms do not recombine to form I2 _ M
Identify the unknown gas - Find the molecular formula of the compound
solution contains fecl3 0.015 m and naoh 0.010 m. solution of fecl3aq 3naohaq -gt feoh3s 3naclaq gives precipitate
Use the tabulated half-cell potentials below to calculate the equilibrium constant (K) for the following balanced redox reaction at 25°C.
What weight of A would be removed from a solution of 10g of A in 100mL of water by a single extraction with 100 mL of hexanes? What weight of A would be removed by four successive extraction with 25-mL portions of hexanes?
One of the product formed when 5-hexen-1-ol is treated with a catalytic amount of sulfuric acid is a cyclic ether
Calculate the volume of C2H2 that is collected over water at 23 Celcius by reaction of 0.751 g of CaC2 if the total pressure of the gas is 740 torr. (The vapor pressure of water is 21.07 torr .)
in a test on the vaporization of water into air in a wetted-wall column the following data were obtained tube diameter
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