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What is the maximum concentration of Ba2+ that can be added to a solution containing 1.5 X 10^-2M of F- without precipitating BasF2? Ksp = 1.7 x 10^-6
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.015 M Na2SO4 at 18,000 units?
What you observed upon the addition of NH3(aq) to magnesium chloride solution / what species are present in the test tube?and what happened when we add NH4Cl? Explain this observation with respect t
A standard solution of sodium hydroxide has a molar concentration of 0.128M. You use 25.00ml of a solution of hydrochloric acid and this requires 32.75ml of the standardized sodium hydroxide solutio
Draw all of the stereoisomers that result when (E)-but-2-ene is hydrogenated with D2 over a metal catalyst. If more than one stereoisomer is produced, click the "New" tool on the toolbar after you
starch and buffer and the total volume was made up to 500 ml with distilled water. The solution turned blue 9 indicating the presence of I2) in 1.8 minutes. Calculate the initial rate of disappearan
What is the composition of this mixture on a mole percent basis? Show all calculations and report answer to correct number of significant figures
in reacting anthracene and maleic anhydride, does the structure of the product make sense in terms of the aromaticity of anthracene and the product?
Plaster of Paris, CsSO4 x XH2O, is a fractional hydrate; that is, one water molecule attaches to more than one formula unit. If a 2.002-g sample has a mass of 1.878 g after hearing, find the water o
How can you determine whether a molecule or ion will exhibit delocalized bonding?
1. Using average bond enthalpies, predict which of the following reactions will be most exothermic:
If the initial concentration of A=2.5 mol/L, the initial [B]=1.4 mol/L, and the rate =0.29 moles of product per liter per minute (M/min). Calculate the rate constant K to 2 decimal places.
The oxide of which of the following metals should have the greatest lattice energy?
Calculate the equilibrium concentrations of H3O^+, A^-, and HA in a 0.040 M solution of the acid, along with the pH of the solution.
write structural formulas for the following condensed structures and determine the functional group in each compound.
Calculate the percentage of pyridine ( C5H5N) that forms pyridinium ion, C5H5NH+ , in a 0.10 M aqueous solution of pyridine (Kb = 1.7x10-9).
under certain conditions, the combustion of charcoal (C) in the presence of o2 forms carbon monoxide (CO) according to the given balance equation.
The Ka for HF is 3.5 × 10-4. What would you expect the percent ionization to be for the same concentration of hydrochloric acid (HCl)? Explain.
the 20 ml of water added to the erlenmeyer flask is to be previously boiled deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in the water causes it to be slig
When a glow stick is placed in a freezer, its chemiluminescence lasts a significant time longer. How might this come about?
A particular sensitizer can absorb photons of one wavelength and release photons of a longer wavelength. Why must the radiation be at a longer wavelength
What is the difference between alpha-glucose and beta-glucose? and show the condensation of two glucose molecules to form a disaccharide with an alpha linkage; with a beta linkage.
What would happen to the energy yeild of glycolysis if you replace all phophate with arsenate knowing that arsenate can be released by hydoplysis of any arsenate-containing compound formed.
the Pyranose form of Fructose is much sweeter than the Furanose form, Sweetness in honey decreases as temperature rises