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To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
A 0.146 g sample of an unknown monoprotic acid (molar mass = 83.0 g/mol) was dissolved in 50.0 mL of water and titrated with a 0.101 M NaOH solution. After the addition of 14.0 mL of base, the pH was 5.12. What was the Ka for the unknown acid
Calculate the value of ?Grxn in a biological cell in which [ATP] = 5.0 mM, [ADP] = 0.20 mM, and [HPO42-] = 5.0 mM.
A sample consisting of various gases contains 3.1 X 10^-6 mole fraction of radon. This gas at a total pressure of 31atm is shaken with water at 30 degree celcius.
In the combustion of propane for energy, how many kilojoules of heat are produced when 2 kilograms of propane are completely combusted in the presence of excess oxygen
a solution of ethanol c2h5oh in water is prepared by dissolving 60.0 ml of ethanol density 0.79 gcm3 in enough water
assuming that the gas behaes ideally. Then repeat the calculation by using the van der Waals equation
Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong electrolyte.a)LiClO4 b)HClO c)CH3CH2CH2OH d)HClO3 e)CuSO4 f)C12H22O11
when hydrochloric acid comes in contact with potassium permanganate, what dangerous chemical is released?
To determine its identity, 0.150g of the unknown was dissolved using 10.00ml, 0.531 M HCl. Three drops of methyl orange was added to the solution and then titrated with 0.2440 M NaOH.
Calculate the molarity of hydrogen peroxide if 28.75 mL of hydrogen peroxide produced 695 mL of oxygen gas at 0.950 atm and 315 K?
Given the following equation, how many grams of PbCO3 will dissolve when 1.5L of 1.00 M H+ is added to 6.00g of PbCO3? PbCO3(s) + 2H+(aq) = Pb^2(aq)+ +H2O (l)+ CO2(g)
Calculate the mass of material required if 1500 calories of energy causes a change from -27 degrees fahrenheit to 91 degrees celcius and the specific heat capacity is 0.25 joules/gram-degree C.
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