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Briefly explain why a volumetric pipet with a chipped or broken tip is usually useless,while a buret with a chipped or broken tip can still deliver accurate volumes.
How do you calculaate the solubility (in grams per liter) of magnesium hydroxide Mg(OH)2
The equilibrium constant Kc for the reaction C--><-- is 5.10e-5. The initial composition of the reaction mixtures is [C]=[C]=[E]= 1.10e-3 M. What is the equilibrium concentration of C,D,E
Calculate the number of Cys residues in the peptide assuming that the total solution volume has not changed after addition of Ellman's reagent and that the stoichiometry of the reaction is 1:1 (i.e. 1 mole of the yellow dye is produced from 1 mole..
Chemistry Concentrations, In each of the following pairs, indicate which has the higher concentration of Cl- ion
A 28.7 g sample of ethylene glycol, a car radiator coolant, loses 652 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)
calculated was contained in 23.80 mL of KMnO4 solution. calculate the molarity of the KMnO4 solution.
iron ore is produced through the following reaction in a blast furnace ironiii oxide carbon monoxide --gt iron carbon
A 2.50-g sample of this mixture was dissolved in 100.0 mL of water, and 0.750 M silver nitrate was added dropwise until precipitation was complete. The precipitate was collected, dried and weighed. What was the mass percent of barium chloride in t..
consider a completely unstructured dna chain of length 5200 base pairs. based on a random walk model the root mean
The equilibrium concentration of I2 is 0.05M. What is the equilibrium constant Kc for the reaction at this temperture? Express answer in K
Which of the following pure liquids is the best solvent for carbon disulfide? HBr(l) CH3OH(l) C6H6(l) H2O(l) NH3(l)
a 12.6-g sample of cacl2 is dissolved in 140. g of water with both substances at 25.0degc. calculate the final
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