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If 50.00mL of 1.00 M HC2H3O2 (Ka= 1.8x 10^-5) is titrated with 1.00M NaOH. Explain what is the pH of the solution after the subsequent volumes of NaOH have been added?
a) 0mLb) 25.00 mLc) 49.90 mLd) 50.10 mL
A mercury manometer is connected on one side to a bulb containing argon, while the other end is open to atmospheric pressure, which is 762 mmHg.
A powder contains FeSO4·7H2O (molar mass = 278.01 g/mol) among other components. A 3.585-g sample of the powder was dissolved in HNO3 and heated to convert all iron to Fe3
a 670 ml gas sample at stp is compressed to a volume of 284 ml and the temperature is increased to 20 c. what is the
What is the mass of 3.20 moles of magnesium chloride,MgCl2 ? Express your answer with the appropriate units. mass of MgCl2 =
The PH of a solution prepared by dissolving 0.30 mole of the weak acid, HA, in enough water to make 1 liter of solution is 6.1. Calculate the Ka and the percent ionization of the HA solution.
question how do you determine the charge of an electron when given the number of moles of electrons and the amount of
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq) + H2 (g) When 5.00 g of a mixture of powdered magnesium and zinc were dissolved in diluted sulfuri..
An environmental chemist obtained a 200 mL sample of lake water believed to be cntaminated with a single monoprotic strong acid.
Write the chemical equation for all the reactions both SN1 and SN2 involving primary and secondary substrates
Gas in a tank contains a poison at a concentration (CT), but the gas is leaking into the surrounding room at a rate of T cm3/min. Meanwhile, an air conditioner brings fresh air into the room at a rate of A cm3/min.
Calculate the molality, molarity and mol fraction of a 25.4% (by mass) aqueous solution of phosphoric acid (H3PO4). in one litre of solution.
The largest of the Great Lakes is Lake Superior, which as a volume of 12,230 km3. What is this volume in liters
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