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At half equivalence 12.65 mL of 0.0395 NaOH is titrated with a10.00mL of a weak acid of unknown concentration. The titration reaches equivalence once 25.3 mL of NaOH have been added. The initial and equivalence pH's are 3.105 and 8.991 respectively. What is the pKa at half-equivalence?
The thermal decomposition of phosphate into phosphorous and molecular hydrogen is a first order reaction : 4PH3(g) -----> P(g) + 6H2(g), The half life of the reaction is 35.0 s at 680*c
What is the strongest base that may exist in water? What happens to stronger bases? (Use methoxide, CH3O1-, as an example.)
Determine the number of grams of O2 consumed.
Give the quantitative species inventory for the result of the mixture of the following substances, 2.00 mols Cl2, 1.00 mols Br2, 0.50 mols I2, 0.50 mols NaCl, 1.00 mols NaBr, and 2.00 mols NaI.
What is the pOH of a Ba(OH)2 solution made by dissolving 0.081 grams of Ba(OH)2 in enough water to make 286 mL of solution
What is the volume of 25.0 g of methylene chloride and what is the mass of 398.0 mmol of benzene (C6H6)
Which ions were present in the original solution? What are the net ionic equations for each reaction that occured?
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Fin the mass of AlCl3 that is produced when 25.0 grams of Al2O3 react with HCl according to the following balanced equation
Write full electron configurations for Sr and Write full electron configurations for Cl
The solution of the question , a 0.3172 g sample containing only KCl and NaBr is dissolved in 50ml water and titrated with 0.1120M AgNO3 , requiring 36.14ml to reach the end point.
When 1.5173 of an organic iron compound containing C, H, O, and Fe was burned in O2, 2.838 g of CO2 and 0.8122 g of H2O were produced. In a separate experiment to determine the mass
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