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How do you calculate the pH of a solution given the concentration of OH- ions?
Which carbocations are most likely to undergo SN2 type of reactions and why?
What is the Fe2+:Sn2+ concentration ratio in the following cell at 25C if the measured cell
An aqueous solution contains 4.90% NH3 (ammonia) by mass. The density of the aqueous ammonia is 0.979 g/mL. What is the molarity of NH3 in the solution?
THe first equivalence point was reached after the addition of 15.25 mL of base. THe second equivalence point was reached after the addition of 30.98 mL. Find two values for the molarity of H3Y in the original sample.
In an acid/base titration, knowing that it took 13.14 mili litres of 0.1016 M sodium hydroxide, NaOH to reach the first endpoint of the titration,) from this information, mols of Phosphoric acid present in the sample is 1.335 mols.
A mixture of 1.10 g H2 and 1.51 g He is placed in a 1.00 L container at 25°C. Calculate the partial pressure of each gas and the total pressure of PHe.
Using information in Appendices B and C, calculate the minimum number of grams of C3H8(g) that must be combusted to provide the energy necessary to convert 3.25 kg of H2O from its solid form at -11.0°C to its liquid form at 70.0°C.
A room contains 46 of air.How many kilowatt-hours of energy are necessary to heat the air in the house from 9 to 30? The heat capacity of air is 1.03.
Draw the mechanism for each reaction you will do today. Pyridinium tribromide releases molecular bromine, so molecular bromine is the brominating agent.
What are the concentrations of H2SO4 and H2SO3 in a 25ml solution titrated with .1M NaOH. The first endpoint is reached after 37.89ml of NaOH are added (pH=7) and the second endpoint is reached after 43.57ml of NaOH are added (pH=9.8).
Describe spectroscopic or chemical tests to distinguish between the following pairs of compounds
a 4 liter flask contains nitrogen gas at 25C and 1 atm. what is final pressure if 2 g of N2 gas are added and flask is cooled to -55C?
when 0.273-gm of Mg is reacted at high temperatures with N2 to produce 0.378-gm of a solid, MgxNy. Calculate the empirical formula of the product.
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