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Find the percent ionization of a 0.337 M HF solution. 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.
Which group contains elements most likely to form covalently-bonded molecules?
Calculate how many grams of phosphorus are present in 2.68 moles of phosphorus pentachloride(PCl5) and also determine the numbers of moles of chlorine are present in 3.71 grams of phosphorus pentachloride?
To determine the percent acetic acid (mass percent) in a vinegar sample, you perform a titration using a 0.2508 M NaOH standard solution. A 20.62-mL volume of the NaOH solution is required to reach the endpoint in the titration of a 7.248 sample o..
Calculate the heat capacity of an aluminium block that must absorb 629J of heat from its surroundings in order for its temperature
A disproportionation reaction is a type of oxidation-reduction reaction. which species is oxidized and which is reduced? B.) If 1.0 mL of 55% HSO3^- by mass is obtained in the reaction, what mass of S2O3^2- was present initially
When silver crystallizes, it forms face-centered cubic cells. The unit cell edge length is 408.7 pm. Calculate the density of silver. (Enter answer to three significant figures.)
How much work would have been done if the gas were ideal? Account for the differences the two values.
Calculate the minimum volume of distilled water, in liters, necessary to completely dissolve a 7.5 g sample of AgBr (s) at 298K. The molar mass of AgBr is 188 g mol
Given the following informationp redict whether or not the hypothetical ionic compound AX is likely to form. In this compound, A forms the A+ cation, and X forms the X?anion. Be sure to justify your answer.
A second assay was performed by making a derivative, ammonium phospho-molybdate, which has visible absorption peak at ~ 400nm. From the Beer's Law plot, estimate the concentration of the unknown solution
You have a 48.9 g sample of water at the temperature of -60.0 degrees celcius. How much energy is required to: a) heat the ice to 0 degrees celcius
What is the equivalent mass of metal that is dissolved in sulfuric acid during hydrogen release if 2.27 g metal reacts with 30 ml 33 w/w% H2SO4 (density 1.25 g/cm^3,
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