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Pure silver has a density of 10.50 g/cm3. A 22.8 gram sample reputed to be silver displaces 2.0 mL of water. Is the sample pure silver? and why?
The average concentration of strontium ion in seawater is 8.00 mg of strontium ion per kg of seawater. What is the molarity of the strontium ion if the density of the seawater is 1.025 g/mL.
Herbigon will be soluble at the concentration needed to kill weeds. What pH must the solution have to yield a solution in which the concentration of X+ is 6.00×10?3M ? The pKa of acetic acid is 4.76.
The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transiytion state theor is valid
Assuming that the loss of ability to recall Chem 401 material is a first-order process with a half-life of 55 days for the traditional (talking head lecture) and a C of 305 days for the active approach,
The reactant concentration in a zero-order reaction was 7.00×10-2 after 105 and 1.50×10-2 after 350 . What is the rate constant for this reaction.
Assuming an Sn1 reaction mechanism, predict the major organic product(s) of (s)-3,3-dimethy-2-butanol reacted with HCl.
What is the solubility product constant for Ag3PO4 if 6.37 mg of Ag3PO4 can be dissolved in 850 mL of water?
Al(OH)4-(aq) → AlO2-(aq) + 2 H2O(l) What is the oxidizing agent? What is the reducing agent? What is the substance being oxidized?
Suggest at least one characteristic absorption each in the IR-spectra of 9-fluorenone and 9-hydrofluorene that could be used to distinguish between these two compounds
The first step of the fischer esterification involves protonation of the oxygen of the carboxylic acid by the acid catalyst:
A tank contains 480. grams of oxygen and 80.0 grams of helium at a total pressure of 7.00 atm. Calculathte following.
dissolved in water to produce a 0.0172 M solution. The pH of the resulting solution is 2.34. Calculate the Ka for the acid.
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