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Hey folks, Having trouble with a few study guide questions for Chemistry. Hoping someone can assist: 1. Calculate the pH of a buffer solution that is 0.100 M in HC2H3O2 and 0.100 M in NaC2H3O2. * Show all calculations. 2a) Calculate the pH of a buffer solution that is 0.250 M in HCN and 0.170 M in KCN. For HCN, Ka = 4.9 x 10^-10 (pka = 9.31). Use the equilibirum approach to calculate this pH * Show all your calculations. 2b) Repeat the pH calculations for the previous question, but this time use the Henderson-Hasselbalch approach. * Show all your calculations. 3. When we do the titration of a weak acid with a strong base, the initial pH is that of the weak acid solution to be titrated or that of the strong acid solution that we are using?
Aspartame (C14H18N2O5) is a solid used as an artificial sweetener. Its combustion produces carbon dioxide gas, liquid water, and nitrogen gas. What is the coefficient of aspartame in the balanced equation for the reaction? (Balance the equation wi..
Write a mechanism for the reaction of an alkyl halide with alcoholic silver nitrate which depicts the type of substitution which occurs. Explain how this mechanism accounts for the relative rate of reactivity of 1o, 2o and 3o halides in this react..
The label on a bottle of concentrated HCl says the contents are 36% HCl by mass and have a density of 1.179 g/mL. What is the Molarity of the Conc. HCl.
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization of water at 273 K and 1 bar.
The white precipitate obtained when cold HCl was added to an unknown solution was completely insoluble in both hot water and NH4OH
What product forms at each electrolode in the aqueous electrolysis of the following salts: 1. LiF 2. SnSO4
The ketone used was cyclopentanone and the aldehyde used was benzaldehyde. First cyclopentanone was dissolved in 95% ethanol. Then benzaldehyde was added along with NaOH to the mixure. The solution was then mixed creating the aldol condensation pr..
explain how the designed sensing strategy functions. Point form answers are acceptable, feel free to use a diagram in your explanation.
Consider the titration of 30.0mL of 0.050M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of tirant have been added.
When 37.6 ml had been added the solution turned red .How many milligrams of I- were present in the original solution?
In C7H8BrNO there are 4 degrees of saturation. Will an open chain structure with 2 triple bonds exist? Open chain with 2 triple bonds. Is this incorrect. Is it too unstable to exist or is it possible.
Give the balanced equation for the reaction- exothermic formation of 1 mol of sodium chloride from its elements
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