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A student placed 17.5 g of glucose in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100 mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 40.0 mL sample of this glucose solution was diluted to 0.500 L . How many grams of glucose are in 100. ml of the final solution?
Lewis Structure for a Nitrate Ion (NO3-1). How many possible resonance structures are there for the nitrate ion
If a process is carried out at constant pressure P and the volume V of the system decreases, then is delta V negative or positive and is the work w negative, positive, or zero
What is the partial pressure of O2 (in millimeters of Hg) in a hyperbaric chamber pressurized to 5 atm with air that is 18% in
You have a 1.0 mL sample of unknown concentration that requires 8.0 mL of titrant to change the color of the solution. How many mg of ascorbic acid are in your unknown sample
A polyamide was prepared by bulk polymerization of hexamethylene diamine (9.22 g) with adipic acid (11.68 g) at 280 degrees C. Analysis of the whole reaction product showed that it contained 2.6 x 10-3 mol of carboxylic acid groups.
what is the mechanism showing electron flow with curvy arrows that includes all steps and intermediates going from starting materials to TPCP, the starting materials are dibenzyl ketone (1,3-diphenyl-2-propanone) and OH
Consider 4 moles of a perfect gas with initial volume= 20dm^3, initial temp= 300K, and final volume= 60dm^3. What is the change in entropy for the system, surroundings, and total for the following processes:
Descibe at least four possible factors which may influence the amount of light absorbed by a solution and how these factors may affect the absorption
What is the structure for the indole that would be obtained from the phenylhydrazone
Nitric oxide, sometimes used in the treatment of lung disease in premature children, is provided to the healthcare professionals as a solution of NO in nitrogen.
Propose a reaction mechanism, including all appropriate arrows, to show how (S)?2?bromo?2? fluorobutane reacts to give (S)?2?fluoro?2?methoxybutane. Has this reaction gone with retention or inversion of configuration
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
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