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A solution containing Pt4+ is electrolyzed with a current of 5.80 A. How long will it take to plate out 79% of the platinum in 0.50 L of a 0.010 M solution of Pt4+?
Fe 2+(aq) + 6CN- (aq) -->/
Calculate How many grams of pure, solid sodium hydroxide are needed to make 500 mL of 0.15M NaOH solution and also express the answer in just 2 significant figures?
If a solution containing 17.76 g of mercury(II) perchlorate is allowed to react completely with a solution containing 5.102 g of sodium sulfate.
Determine how many moles each of Na+ and Cl- are in 0.700 L of the saline solution (A physiological saline solution contains 167 mEq/L each of Na+ and Cl-.)?
A small bubble rises from the bottom of a lake, where the temperature and pressure are 8ºC and 6.4 atm, to the water's surface, where the temperature is 25ºC and pressure is 1.0 atm.
The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust and other resources is about 26 million tons. the equation for the reaction is S + O2= SO2.
If 17.2 mL of 0.800 M hydrochloric acid solution are required to neutralize 5.00 mL of a household NH3 solution, determine the molar concentration of the NH3,ammonia?
We have noted that water level rises to 62.4mL when a piece of metal of 48 grams is dropped into 50.0mL of H 2 O in a graduated cylinder. Determine the density of this metal?
A gas bottle contains 0.650 mol of gas at 730 mm Hg pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle.
What is the origin of the charge neutrality requirement in solids? Why must solids have charge neutrality in the bulk,
Determine the partial pressure of oxygen O2 If the total pres- sure =80 torr, the partial pressure of CO=330 torr and the CO2 has a partial pressure = 330 torr?
Determine How many mg of a 298 mg sample remains unreacted after twenty three days if 32P decompose by a first-order mechanism, half-life = 14.3 days.
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