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Based on the pKa of benzoic acid and the pKa of HCl, what do you hypothesize will happen in terms of reaction equilibrium. The equilibrium will favor the starting materials (sodium benzoate and HCl) b
Suggest a synthesis for the following alcohol starting from an aldehyde or ketone and propylmagnesium bromide
Arrange the following in order of increasing basicity: a) ch3nh2, ch3nh3+, ch3nh- b) ch2o-, ch3nh-, ch3ch2- c) ch2ch(triple-bond)ch-, ch3ch2ch2-, ch3c(trip-bond)c-
Pretend you run a reaction and your theoretical yield is 5.25 grams, but you isolate 5.50 grams. What is the most likely reason for the excess weight
The following molecular equation represents the reaction that occurs when aqueous solutions of silver nitrate and calcium iodide are combined. 2 AgNO3(aq) + CaI2(aq) 2 AgI(s) + Ca(NO3)2(aq) Write th
She titrated the acid with a NaOH solution whose exact concentration was unknown. A volume of 18.19 mL of NaOH solution was required to reach the endpoint of the titration. What was the concentratio
Write the net ionic equation for the precipitation of chromium(III) hydroxide from aqueous solution
An aqueous solution containing 5.85g of an optically pure compound was diluted to 800.0mL with water and placed in a polarimeter tube 10.0cm long. The measured rotation was -5.93degrees at 25degrees
For each of the following cases, identify the order with respect to the reactant, A. Case (A ----> product) 1. The half-life of A increases as the initial concentration of A decreases
If a pure R isomer has a specific rotation of -120.0 degrees, and a sample contains 81.0% of the R isomer and 19% of its enantiomer, what is the observed specific rotation of the mixture
Now assume that you started with only 1.80 g of sodium benzoate. Assuming that the reaction proceeds to form benzoic acid, what would your theoretical yield be. Use two decimal places.
The condensate from a steam distillation contains 8g of an unknown compound and 18g of water. The mixture steam distilled at 98 C. What is the molecular weight of the unknown
Iodobenzene(C6H5I, bp 188C) steam distills at 98.2. How many molecules of water are required to carry over 1 molecule of iodobenzene. How many grams os water per gram of iodobenzene
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3 M HCl, and assuming that the reaction proceeds to form benzoic acid, what would your theoretical yield be
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3M HCl, how many molar equivalents of HCl are you using? Use two decimal places.
All particles in the mixture have a uniform spherical radius of 0.094 mm. a) Calculate the mass of a single particle of Na2SO4 and the number of Na2SO4 particles in the mixture.
How are the following aspects of a reaction affected by the addition of a catalyst. 1) activation energy of the reverse reaction A) Increased B) Decreased
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3M HCL, what is the limiting reagent in this reaction. you may need to calculate mmoles of sodium benzoate first.
A certain reaction has an activation energy of 46.80 kJ/mol. At what Kelvin temperature will the reaction proceed 3.50 times faster than it did at 341 K
This precipitate is removed and excess H SO is then added to the solution which forms a precipitate. This precipitate is removed and excess NaOH is added to the supernatant until the solution is str
what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate
You carry out a titration of a pure weak triprotic acid and only see two major pH jumps. One at 10.0 mL and one at 15.0 mL. At what volume is the other equivalence point
The mixture was stirred, causing all of the sample to dissolve. The excess HCl in the solution required 94.9 mL of 0.128 M NaOH for complete neutralization in a titration. What was the molecular for
Eventually, the amounts of the three species do not change further; the system has reached equilibrium. (at this point, approximately 22% of the HI has decomposed.) Describe what is happening in thi