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Why must all F- solutions be measured and kept in plastic ware rather than glassware? Why do you measure the most dilute solutions first when using ISE? Why do we not use TISAB when determining the selectivity coefficient?
Draw a Lewis structure for acyl chloride R-C(=O)-Cl and state its 3D-structure around the central atom (C). R is an acyl substituent.
A solution of salicylate dianion is prepared by mixing 0.158 g of reagent grade acetylsalicylic acid in 5 mL of 1 M sodium hydroxide and heating the mixture until all of the solid dissolves.
A cylinder of Nitric Oxide has a volum of 10.0L and a pressure of 16.98 atm at 20 degrees Celcius, the number of moles of NO
If you were to carry out saponification of ethyl tridecanoate, would you expect the product to generate foam/froth when mixed and agitated with water
A 100.0ml sample of 0.100M methylamine(CH3NH2, kb=3.7x10-4) is titrated with 0.250M HNO3. Calculate the pH after the addition of each of the following volumes of acid. a) 0.0 ml b) 20.0 ml c) 40.0 ml d)60.0 ml
After adding 0.25 mL of 0.50 M NaOH, the pH of the same solution changed to 8.05. Calculate the buffer capacity (? mmol OH-/? pH) of this solution to two decimal places.
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5.
Once the system has reached equilibrium, 5.00 g of NO2 is injected into the vessel, and the system is allowed to equilibrate once again. Calculate the mass of NO2 in the final equilibrium mixture.
carboxylic acid is burned in oxygen, producing 1.462 g of CO2 and 0.6019 g of H2O. Determine the empirical formula of the carboxylic acid.
What is the pH of the solution during the titration when the following volumes of the NaOH have been added to 34.5-mL of the acid.
The values of delta h and delta s for the reaction CaCo3(s) yields CaO(s)+CO2(g) are 177.8kJ and 160.5 J/K respectively. the pressure of CO2 at equilibrium for the process
suppose that a particular reaction evolves heat of 228 kj and that 40 kj of pv work is gained by the system. determine
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