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Calculate the pH of a solution prepared by dissolving 18.32 grams of benzoic acid and 43.23 grams of sodium benzoate in water sufficient to yield 1.00 L of solution. (The Ka of benzoic acid is 6.30 × 10-5, the molar mass of benzoic acid is 122.12 g/mol, and the molar mass of sodium benzoate is 144.10 g/mol.
Balance the following equation in basic solution. indicate which reactant becomes oxidized during the reaction, which reactant becomes reduced
Write a balanced equation including states of matter for the reaction of Zn(H2O)4 in aqueous NaCN.
Calculate the feed rate of humid air in SCMH?Vapor pressures of water at 32 °C and 4 °C are 35.7 mm Hg and 6.1 mm Hg respectively.
Determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water to make Ammonia (NH3) and Lithium hydroxide.
How does the law of definite proportions help to distinguish between a compound of certain elements
how many moles of NH4Cl are necessary to prevent the precipitation of magnesium hydroxide (neglect change in volume due to addition of NH4Cl)? The solubility product for Mg(OH)2 is 1.5× 10-11, and the Kb for ammonia is 1.8 × 10-5.
A piston has an external pressure of 11.0 rm atm. How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.460 liters.
what is the term for a substance that is capable of either accept or donate a proton in as which base reaction?
A sample of molten iron occupies a volume of 7.11 x 10-3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?
A chemist must dilute 80.5mL of 126mM aqueous sodium thiosulfate solution until the concentration falls to 110.mM . He'll do this by adding distilled water to the solution until it reaches a certain final volume.
The reaction of copper metal with silver ions in a solution if silver nitrate is spontaneous . Calculate she standard cell potentiom to show that this is so.
Description of Chemical Reactions, Why when heating and cooling three different separate substances in open containers does the mass change in two of them (one loss mass; the other gained mass) but stays the same in the third when it is known that..
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