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A 2.29 g sample of ascorbic acid is titrated with a 0.64 M red dye. What volume of red dye is required to reach the endpoint?
How does the attractive force that the nucleus exerts on an electron change with the principal energy level of the electron
how does the attractive force that the nucleus exerts on an electron change with the principal energy level of the electron?
If 10.7 mL of .110 M NaOH is required to reach the equivalence point of a solution of citric acid, how many mL of NaOH are required to completely neutralized this solution
Draw the major E2 reaction product formed when trans-1-chloro-2-ethylcyclohexane reacts with hydroxide ion in DMSO
Write three orbital designations that would be incorrect and explain why each is incorrect. For example, 1p would be an incorrect orbital designation because there is no p sub-shell in the first orb
One bit of evidence that the present theory of atomic structure is "correct" lies in the magnetic properties of matter. Atoms with unpaired electrons are attracted by magnetic fields and thus are sa
KHP is an acid that is monoprotic and hardly hygroscopic. When carbon dioxide reacts with NaOH it produces sodium carbonate. I kind of understand how to do part b but i really don't understand how t
An electrochemical cell was constructed from Sn/Sn2+ and Pb/Pb2+ with KNO3 as the salt bridge. The concentrations were Sn2+ =1.0M and Pb2+ = 0.1M.
Calculate the wavelength of the absorption maximum for a metal complex ion that has a crystal field splitting energy of 279 kJ/mol. The final answer should be in nm.
what is happening to the observed cell potential, Ecell and E0Cell as Zn2+ increases and Cu2+ decreases?
Subtilisin (Mr 27600) is a bacterial protease that can catalyze hydrolysis of certain amino acid esters and amides. Subtilisin does have a problem, in that it becomes inactivated by oxidation of a m
Show the condensation of two glucose molecules to form a disaccharide with an alpha linkage; with a beta linkage.
What is the hydronium ion concentration and the pH of a solution formed when 30mL of 0.30M HNO3 is titrated with 43mL of 0.20M NaOH at 25C?
What will be the value of E cell and E0 cell when the Cu/Zn battery has "run down" I.e., reached equillibrium? Also will the concentrations of Zn2+ and Cu2+ be large or small when the battery has "r
If a 0.100 molar solution of NaOH is added to a solution containing 0.200 molar Ni2+, 0.200 molar Ce3+, and 0.200 molar Cu2+, which metal hydroxide will precipitate first?
Traces of toxic, man-made hexachlorohexanes in North Sea sediments were extracted by a known process and by a new procedure, and measured by chromatography.
The percentage of an additive in gasoline was measured six times with the following results: 0.14, 0.15, 0.16, 0.17, 0.20, 0.11%. Find the average and RSD and 90% confidence intervals for the percen
The ratio of the number of atoms of the isotopes 69Ga and 71Ga in eight samples from different sources was measured in an effort to understand differences in reported values of the atomic mass of ga
NaCl is added to 33.4ml of 0,327M AgNO3(silver nitrate). What would be the concentration of each of the ions(ie Ag+, NO3- Na+ and Cl-) in the reaction mixture after the reaction.
Complete and balance the following equations, and identify the oxidizing and reducing agents. (Recall that O atoms in hydrogen peroxide, H2O2, have an atypical oxidation state.)
With aqueous H2CrO4, compound A was oxidized to an optically inactive dicarboxylic acid C, C6H10O4. Give structures for compounds A, B, and C; do not specify stereochemistry.
When optically active B was treated with CrO3 in pyridine, an optically inactive sample of A was obtained. Heating A with hydrazine in base gave hydrocarbon C, which, when heated with alkaline KMnO4
Ozonolysis of C followed by treatment with Zn and water gives CH3CHO and compound D (C9H10O). The proton NMR spectrum of compound D is given below. Treatment of compound D with ethyl magnesium bromi
The Ksp of AgCrO4 is 1.9 x 10^-12. Calculate the molar solubility (in mol/L) of Ag2CrO4 in 0.1 M AgNO3.