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consider the following acids and their dissociation constants: HPO4^2-(aq)+H2O(l)<__->H3O^+(aq)+PO4^3-(aq). Ka=2.2x10^-13. HCOOH(aq)+H2O(l)<__->H3O^+(aq)+HCOO^-(aq). Ka=1.8x10^-4. a)which is the weaker acid, HPO4^2- or HCOOH? b)what is the conjugate base of HPO4^2-? c)which acid has the weaker conjugate base? d)which acid has the stronger conjugate base? e)which acid produces more ions
suppose new element with atomic number 120 is discovered.if some isotopes of this element have 122 nuetrons and some have 124 neutrons,what can you infer about the atomic mass of the element.
What equipment will I need and what measurements do I need to make in order to find enthalpy, entropy, and gibbs free energy?
a stock solution containing cobalt ions was prepared by dissolving 393 grams of pure cobalt metal in nitric acid and diluting to a final volume of 8.75 L. Determine the concentration of the stock solution.
Give two reasons why cyclohexane adopts the chair conformation rather than a planar structure
How many moles of urea (60. g/mol) must be dissolved in 100 g of water to give a 2.5 molal solution?
Calculate the reaction quotient Qc and find out at which temperature and
The mixture of saltwater and ice around the ice cream bucket in the ice cream machine is at a temperature of -8.40C. What mass of sodium chloride would be found in 1,477 grams of this solution?
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reactio..
Consider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy ΔG °:
God prices fluctuate, depending on the international situation. If gold currently sells for $503.11 per troy ounce, how much must you spend to purchase 1.00 mol gold
"If the crystal field splitting (Δo) is 3.44×10-19 J for a cobalt compound, what wavelength of light (in nm) is absorbed when an electron from a lower energy d orbital is promoted to a higher energy d orbital? What color will the cobalt compound a..
Given that delta r H = 40.67 kj/mol for vaporization of H20 at 100 degrees celcius, what is delta S tot for vaporization of 1 mol of water at 1 bar pressure at 125 degrees celcius? Is this process spontaneous?
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