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Which of the following is a diprotic acid?
Provide the structure of an aromatic compound with seven carbon atoms. Draw the molecule on the canvas by choosing buttons from the Tools (for bonds)
How much entropy does this produce per hour in the surroundings at 25.4 °C? Assume the heat transfer is reversible.
Potassium chloride is used in the kitchen as a salt substitute (in place of sodium chloride). Suppose you were planning to make ice cream but discovered too late that you were out of table salt for making the ice bath.
Suppose that you have 175 mL of a buffer that is 0.300 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO%u2013). Calculate the maximum volume of 0.250 M HCl
1. Write a mechanism for the haloform reaction. 2. A sample of pure R enatiomer of 3-phenyl-2nutanone racemizes when catalytic amonts of acid are present.How would you account for the observation.
Draw a structural formula that you would predict in aspirin in each of the following biological environments. a. Esophagus pH 6.8
Cells are biomolecular engines. Considering the groups of chemicals listed below, which are the main ones that make up the cell?
the solubility f suberic acid is 0.14g100ml of water or 0.56g100ml of ether. calculate the volume of ether needed to
How many grams of CH4 must be burned to release 554 kJ of heat based on this thermochemical equation:
The values for nitrous acid (HNO2) and hypochlorous (HClO) acid are 4.5 x 10^-4 and 3.0 x 10^-8 , respectively. Which one would be more suitable for use in a solution buffered at pH = 7.0
Balance the following equations: a) Zn(s)+H2SO4(aq)--->ZnSO4(aq)+H2(g); b)Al(s)+H2SO4(aq)--->Al2(SO4)3(aq)+H2(g); c)K2SO4(aq)+BaCl2(aq)--->BaSO4(s)+KCl(aq); d) CaCO3(s)--->CaO(s)+CO2(g); e)Al2(SO4)3(aq)+KOH(aq)--->Al(OH)3(s)+K2SO4(aq).
Ethylene glycol, C2H6O2 (MW=62.1mol) has a density of 40.0 mass percentage and a solution of ethylene glycol in water is 1.0514 g/mL at 20 EC. Calculate the molality of the solution
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