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Find the pH during the titration of 20.00 mL of 0.1760 M butanoic acid, CH3CH2CH2COOH (Ka = 1.54 10-5), with 0.1760 M NaOH solution after the following additions of titrant.
(a) 0 mL
(b) 10.00 mL
(c) 15.00 mL
(d) 20.00 mL
(e) 25.00 mL
Name the type of coupling that happens when two atoms connected through covalent bonds transfer their energy when they ring.
What was the volume of the aluminum cylinder in cm3? The mass of the aluminum cylinder was determined to be 30.1 grams. What is the density of the aluminum?
The presence of carcon- carbon double bonds in eugenol can be tested using the bromine water test. write a balance equation for the reaction involved in this test.
What volume of .2 M Na2SO4 will completely react with 50 mL of .135 M Ba(NO3)2
What is the value of work (w) when a piston of volume 0.2 L expands against an external pressure of 200 kPa to a volume of 3.4 L?
container and found that no change had occurred after one week. Offer possible explanations for the lack of reaction. Assume that A, B, and C are totally miscible liquids.
A compound with the empirical formula CH2O was found to have a molar mass between 89 and 91 g. What is the molecular formula of the compound?
Use the Van Der Waals equation to calculate the pressures of the three real gases. Compare the plots and explain the origins of any differences you find.
Why would the active form of thrombin be produced only when an injury occurs to tissue?
A 0.750 g of lye is dissolved in water and titrated with 32.0 mL of 0.500 M HCl. What is the percent purity of the lye sample
A catalyst decreases the activation energy of a particular exothermic reaction by 59 kJ/mol, to 51 kJ/mol. Assuming that the mechanism has only one step, and that the products are 94 kJ lower in energy than the reactants
Calculate the 1)mls of 100mM of NaOH or HCl 2) grams of disodium phosphate 3) and the mls of water required to make a 200mM phosphate buffer at pH 6.85
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