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A battery charger use to recharge NiMH batteries can deliever as much as 0.30 A of current to each battery. If it takes 100 min to recharge one batter, how much Ni(OH)2 (in grams) is oxidized in NiO(OH)?
Calculate the pH of the solution that results when 100.0 mL of 0.15 M NaOH is added to 50.0 mL of 0.25 M HNO3
A proton in a linear accelerator has a de Broglie wavelength of 139 pm what is the speed of the proton?
Consider a binary liquid mixture A and B, where A is volatile and B is nonvolatile. The composition of the solution in terms of mole fraction is xA = 0.045 and xB = 0.955
In the reaction BaCO3 + 2HNO3 -> Ba(NO3)2 +CO2 + H2O, what mass of Ba(NO3)2 can be formed by combining 55 g BaCO3 and 26 g HNO3?
Calculate the pH of a buffer solution obtained by mixing 400.0 mL of 0.200 M acetic acid solution and 100.0 mL of a 0.300 M sodium hydroxide solution.(The pKa of Acitic Acid, CH3OOH is 4.74)
Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a Hvap of 32 .1 kJ/mol.
How many grams of hydrobromic acid (HBr) must be dissolved in 720 ml of water to make a solution with a pH = 6.2?
Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 9.1 g of octane is mixed with 22.7 g of oxygen.
Solid calcium oxide reacts with solid ammonium chloride to produce gaseous ammonia, gaseous water, and solid calcium chloride. If 112 grams of calcium oxide were mixed with 224 grams of ammonium chloride
Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
When C2H5OH +3O2 produces 2CO2 + 3H2O,determine how many grams of oxygen gas are essential for complete combustion of 421grams of ethanol ?
Size of a hydrogen spherical balloon for lifting a payload, Determine the size of a spherical balloon filled with hydrogen at 30°C and atmospheric pressure for lifting 400Kg payload
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