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While heating your copper sulfur mixture the original crucible lid fell and was broken. You replace the lid with another one. You used the mass of the original lid in your calculations. However the mass of the second lid was actually higher. What effect would this have on your final answer for the empirical formula (in terms on molar ratio)? Be very specific.
Problem- Given the vapor pressure diethyl grinch is 76torr at 40degC and the normal boiling point of the compound is 200oC, a) What is the enthalpy of vaporization
ionization energy involves completely removing an electron from an atom. what wavelength of light is required to remove
How do the tests on known solutions containing cations and anions make it possible for you to identify the cations or anions in an unknown solution?
When white phosphorous (P4) is heated above 1100 K, the following equilibrium is observed in the gas phase P4 ? 2P2 b. The equilibrium constant has been measured as a function of temperature for this reaction
A chemical reaction took place inside of a coffee cup calorimeter. The 70.0g of 25 degrees C water cooled to 17.5 degrees C during the reaction. What is the value for ΔH of the reaction
List four observations that may be used as evidence of chemical change?
Problem- Write a balanced reaction that clearly shows the hydrolysis of val-phe dipeptide. Assume the pH is equivalent to the pI.
assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter.
Question- Acid chlorides are used extensively as electrophiles in the Friedel-Crafts reaction to prepare aromatic ketones. The reaction involves the treatment of an aromatic hydrocarbon with an acyl chloride in the presence of a Lewis acid
Does there appear to be a relationship between the presence and absence of color in a salt solution and the position of the element in the periodic table
A compound has a molar absorptivity of 3.71*10^3 L cm^-1 mol^-1. What concentration of the compound would be required to produce a transmittance
Determine the mass of the liquids in grams if this liquid is added to the beaker the combined mass becomes 238.254 grams? Given that the mass of beaker=225.08 g?
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