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10g of H2O2 impure sample when reacted with KI (solution) produced 0.5g iodine.What is percentage purity of H2O2?(AI=127,AK=39)
Find the pH and percent dissociation of a 0.100 M solution of a weak monoprotic acid having the following Ka value. Ka = 1.0 x 10^-5
Calculate the percent ionization of 0.085M lactic acid in a solution containing 0.050M sodium lactate
4.00 mL of potassium ferricyanide is put into each flask (1-4) . In Flask 2 add 1.00 mL of glucose stock (2.78x10^-3 M), add 2.00 mL into Flask 3, 3.00 mL into Flask 4, and in Flask U add 1.00 mL of glucose stock. Determine glucose concentration in e..
A biochemist wants to utilize the following oligopeptide for biochemical assays. Estimate the number of charges on this peptide at different pH conditions by considering the charge states of amino acid residues at pH 2, pH 7.4 and pH 10.
Zinc reacts with hydrocholric acid according to the reaction equation. Zn(s) + 2HCl(aq) arrow ZnCl2(aq) + H2(g) How many milliliters of 2.50 M HCl(aq) are required to react with 7.5 g of Zn(s)
considering the given equation as. cac2s2h2ol c2h2gcaoh2aq nbspin which acetylene gas c2h2 is produced a. determine
a sample was placed on a chromatography column. methylene chloride was used as the eluting solvent. no seperation of
What mass of Mg(OH)2 will be formed, and what will be the concentration of the ions in the solution of after the reaction complete
The most probable mechanism of reactivity for the solvolysis of tertiary butyl chloride is a)Sn1 b)Sn2 c)E1 d)E2. I performed the experiment and benzyl chloride (primary) and teriaty butyl chloride (tertiary) ran the same amount of time. 2-chloro-..
If 50 mL of .100 M NaOH is titrated with .100 M HCl, what is the pH of the solution after 30 ml of HCl solution has been added
when solid sodium bicarbonate is placed on an acetic acid solution they react to form water carbon dioxide and sodium
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the visible portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transition
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