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A galvanic (voltaic) cell consists of an electrode composed of zinc in a 1.0 M zinc ion solution and another electrode composed of copper in a 1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.
which of these is true about the following reaction?
A sample of a gas weighs 2.006 g and has a volume of 1060.0 mL at 795.0 torr and 32.0 degrees Celsius. What is its molar mass?
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees celcius before the solution becomes saturated?
the structure of a protein by both NMR and X-ray crystallography and they differ in one region. Which is more likely to be the true structure of the protein when dissolved in solution? Why?
Determine the molar mass of each of the following gases: a) 2.90 g of a gas that occupies 0.500 L at 0 degrees C and 1.00 atm (STP); b) 1.43 g of gas that occupies 2.00 L at 0 degrees C and 760 mmHg (STP); c) 0.726 g of a gas that occupies 855 mL ..
If 3.20mL of vinegar needs 41.5mL of 0.150 molarity NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.50qt sample of this vinegar?
in the electrolysis of a sodium chloride solution, what volume of H2 is produced in the same time it takes to produce 257L of Cl2, with both volumes measured at 50 celcius degrees and 2.50atm
The following reaction is first order with respect to NO and first order with respect to O2, and the rate constant is 5.0 x 104 M-1s-1
1) Draw all aldehyde and ketone isomers of C 6 H 12 O. 2) What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
Calculate the heat required (kJ) to convert 25.0 g of C2Cl3F3 from a liquid at 5*C to a gas at 82*C
If the same amount of heat is added to identical masses of each of these substances, which substance attains the highest temperature? (Assume that they all have the same initial temperature.)
A unit of heat energy that was formerly used frequently was the calorie (cal). Calculate the calorimeter constant for the coffee-cup calorimeter in terms of cal/g degrees C.
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