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A 70.0 g piece of metal at 22.0°C is placed in 100.0 g of water at 80.0°C in a coffee cup calorimeter (with negligible heat capacity), and the metal and water come to the same temperature at 75.6°C. What is the specific heat capacity of the metal? (specific heat capacity of the water = 4.18 J/g•°C)
Write the reactions responsible for the LIQUID PHASE oxidation of S(IV) to S(VI), and show how the oxidation can lead to a decrease in pH of rain water.
Predict the species that will be oxidized first if the following mixture of molten salts undergoes electrolysis
Write the balanced equation for the complete combustion of each of the following compounds
As a separation and detection method, would TLC or paper chromatography yield better results in the analysis of each of the following pairs of compounds
If a sample that is 1.200g in 25.0mL of heptane is cooled to 0 degrees C, what would be the percent recovery of the solid that would be collected? (M.P.=80 degrees C)
The laser in an audio cd player uses light with a wavelength of 7.80* 10^2nm. Calculate the frequency of the light.
How much hexanol was in the sample represented by this chromatogram? ( chromatogram shows retention time for butanol to be 10 min and retention time for pentanol to be 20min.
What is the difference between an amino acid and a protein? How does this difference in structure affect biological function?
How many moles contain each of the following? 3.75 x 10^24 molecules CO2
Ethylene gycol has a density of 1.11g/mL. What is the volume of 30.0 g of ethylene glycol?
Consider a liquid with a vapor pressure of 320. torr at 20.0 degrees C and a vapor pressure of 540. torr at 50.0 degress C. What is the normal boiling point of this liquid?
State whether the equilibrium partial pressure of NH3 increases, decreases or stays the same. (a) increasing the temperature; (b) transferring the equilibrium mixture to a larger reaction vessel; (c) adding a small amount of LiOH(s), which reacts ..
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