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Find the volume of a solution.
Compute the volume of 0.0500M Ba(OH)2 solution that contains the similar number of moles of Ba(OH)2 as 120.0mL of 0.0800M Ba(OH)2 solution.
Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the following equations: a) Mg(s) + NiCl2(aq) ? MgCl2(aq) + Ni(s) b) PCl3(l) + Cl ...
Consider a 0.65 m column with van Deemter parameters A=0.22 mm, B=21.7 mm mL/min, and C=0.018 mm min/mL. If it takes at least 85 theoretical plates to fully separate two solutes, what range of flow rates can be used to s ...
Hello, need help with the following chem questions. Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2Al(s)+3Cl2(g)→2AlCl3(s) You are given 24.0 g of aluminum and 29.0 g of chlori ...
Pyridine (C5H5N) is a weak base (pkb = 8.74) with an unpleasant, sweet fishy odour. In a titration, 175.0mL of pyridine solution required 13.6 mL of 0.3250M HCl to reach the equivalence point. a) Calculate the pH of the ...
In the reaction of meso-stilbene dibromide, KOH and triethylene glycol and heat, if the KOH has a purity of 85% and the remainder is water; why did the mixture appear to boil?
Using the Debye-Hucket equation, calculate the activity coefficients for the acidic and basic forms of bromocresol green, HX- and X2-, for a solution with an ionic strength of u=0.1M.
What are the major sources and emissions of air pollution in your community? What chemicals are they emitting, and how are these chemicals transported through your community (non-point sources, smokestacks, etc.)? Were y ...
Assuming that air is 21.0 percent oxygen by volume, what volume of air in liters at 45.0 °C and 793 mmHg would be required to burn 185 g of ethanol (C 2 H 5 OH)?
Assignment The Purpose of this Assignment Submission of an ePortfolio is required for this class. Your Signature Assignment should address topics of personal interest, societal concerns, local, or even global issues, fro ...
Write an essay about molecular modelling, its uses, and applications, and use a freely available modelling software from the internet and include the details of the modelling you followed, and give examples of at least t ...
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