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A voltaic cell is constructed by immersing a strip of silver in a 1.0M AgNO3 solution and a strip of cadmiun metal in a 1.0M Cd(NO3)2 solution. The circuit is completed by a wire and a salt bridge in the usual way. Write the balanced half-reaction that is occurring at the anode?
A 375 mL sample of gas is initially at a pressure of 721 torr and a temperature of 32°C. If this gas is compressed to a volume of 286 mL and the pressure increases to 901 torr, what will be the new temperature of the gas (reported to three sig..
which obeys the Van der Waal's equation. Investigate graphically using appropriate software (like Maple) the behavior of Z above and below the Boyle temperature. Obtain an expression for the Boyle temperature for a Van der Waal's gas.
Write the reaction of the borohydride ion with water using curvy arrows to show electron movement to form one molecule of H2. Draw a complete line structure for the borhydride ion.
a mixture of methane and ethane is stored in a container at 294 mmHg. The gases are burned in air to form co2 and h2o. if the pressure of co2 is 357 mmhg measured at the same temperature and volume as the original mixture, calculate the mole fract..
what is the difference between using blue dye and red dye when determining the rate law for the oxidation by sodium hypochlorite?
Discuss the typical features of a calomel electrode and a silver - silver chloride electrode. What are their standard half cell potentials?
A buffer solution is made by making a 100 mL aqueous solution containing 2.6 grams of citric acid (C6H8O7) and 6.4 grams of potassium citrate (C6H7O7K). What is the pH of this buffer solution
Zn (s) + 2HCl (liq) -> H2 (g) + ZnCl2 (s), How many moles of ZnCl2 form when 6.3 mol of Zn reacts?
Which of these are isoelectronic to Argon. Mn+7, S-2, Ca+2, Br-, Cr+3, Na+, Ga+3, Ti+4
Calculate [H+], pH, [OH-] and pOH in a solution in which lactic acid, HC3H5O3, concentration is 0.250 M and the lactate ion concentration is 0.125 M.
Which of the following would be expected to have the lowest pH?
how many grams of ethylene glycol automobile antifreeze rm c2h6o2 dissolved in 3.30 rm kg of water is needed to lower
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