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You have a piece of zinc metal and copper metal. Additionally, you have a salt bridge and 1.0 M solutions of zinc nitrate and copper (II) nitrate. You construct a galvanic cell. What will be the anode? What will be the cathode? Write appropriate half-reactions for each and explain how you determined which was which.
ethyl acetate is conveniently prepared by using ethanol as both solvent and reactant. explain why this procedure would
One mole of an ideal gas with a volume of 2.5 L and a pressure of 5.0 atm is allowed to expand isothermally into an evacuated bulb to give it a total volume of 5.5 L. Calculate w and q. Also, calculate qrev for this change of state.
What is the percent hydrogen (H) by weight of a solution containing 53.5 mL of CH3COCH3? The density of acetone is 0.788 g/mL.
Identify the substance that is oxidized and the substance that is reduced in the following reaction: 2NaCl(l) --> 2Na(s) + Cl2(g). How many electrons are involved in the above redox reaction
how much heat kj is required to change 8.13 g of ice at its normal freezing point to steam at 100oc? the specific heat
Calculate the partial pressure of O2 produced from 1.71 liters of .64 M N2O5 solution at 45 degrees C over a period of 24 hours if the gas is collected in an 11.5 L container, assuming that the products dont dissolve in chloroform.
calculate the moles of aluminum ions present in 250.0 g aluminum oxide. acetaminophen a common aspirin substitute has
Draw both products of bromination of cholesterol which you obtained. What is the stereochemical relationship between them
A weather ballon is filled with helium to a volume of 305L at 28 degree celcius and 751 mmHg . The ballon ascends to and altitude where the pressure is 504 mmHg and temperature
The specific enthalpy of a wet steam at 150.3°C (5 bars) is determined from the Steam Table to be 2,429 kJ/kg. Caculate the quality of the steam.
Sample of solid naphthalene is introduced into an evacuated flask. Use the data below to calculate the equilibrium vapor pressure of naphthalene (C10H8) in the flask at 25°C.
A 50.0-mL sample of 2.0 x 10-4 M CuNO3 is added to 50.0 mL of 4.0 M NaCN. Cu+ reacts with CN- to form the complex ion [Cu(CN)3]^2: [Cu(CN)3]^2- Cu+ (+) 3CN- K = 1.0 x 10^-9
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