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Equal amounts of heat are added to equal masses of aluminum and copper at the same initial temperature. Which metal will have the higher final temperature, and how many times greater will that temperature change be than the temperature change of the other metal?
its clay concentration and the CEC of the clay be able to estimate the draction of CEC due to organic matter in the sample
A 50.00-mL sample of 0.100 M KOH is titrated with 0.152 M HNO3. Calculate the pH of the solution after 52.00 mL of HNO3 is added.
A sample of metallic element X, combines completely with oxygen gas (O2) forming a metal oxide of formula XO. If the amount of oxygen gas used is 32 grams, and the total amount of metallic oxide formed is 112 grams, Determine the identity of the m..
If 3.55 g of CuSO4 are dissolved in 925 mL of 0.30 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium Kf, Cu(NH3)42+= 1.1 x 1013 . Assume that most of the Cu2+ is converted to the complex since K is a very large number.
The vapor pressure of pure methanol, CH3OH, at 30 C is 160. torr. How many grams of the nonvolatile solute glycerol, C3H5(OH)3, must be added to 131. g of methanol to obtain a solution with a vapor pressure of 133. torr.
The half-life of a certain first-order reaction is 15 minutes. What fraction of the original reactant concentration will remain after 2.0 hours
Potassium (atomic mass = 30.19 amu) has three isotopes with masses 38.9367 amu, 39.9640 amu, and 40.9618 amu. The abundance of the last isotope is 6.73%. Estimate the abundances of the other two isotopes
an unknown compound has the following chemical formula crohx where x stands for a whole number. measurements also show
Draw the structures of 1-phenyl ethanamine and tartaric acid. Calculate how much of each compound would be needed to create
Derive an expression for the compression factor of a gas that obeys the equation of state P(V - nb) = nRT
Using data from Appendix D in the textbook, calculate [OH?] and pH for each of the following solutions.
when cyclopentane is exposed to Br2 in presence of light. Write the formulas of all possible dibromination products. Draw molecule by placing atoms on grid.
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