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Question- Express the concentration of a 0.0890 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL
Please answer only if you are 100% confident
Which of the following describes what happens to the solubility of a slightly soluble ionic compound when a common ion is added to the solution
Determine a set of proteins that have masses of 15, 22, 50 and 75 KDa. Utilizing the diagram below decide which of the subsequent gel percentages would be most suitable for this experiment and justify your choice
Problem- Calculate the pH during the titration of 30.00 mL of 0.1000 M NaOH with 0.1000 M HCl after 30.3 mL of the acid have been added.
Write a complete mechanism of reaction of 2,4-dinitrophenylhydrazine with cyclohexanone. (show electron lone pairs and formal charges and show electron flow using curved arrows)
Cycloprpane decomposes in a first-order reaction at 500 C If the cyclopropane concentration is .670 M at the start of the reaction and is .367 M after 900 s, what is the rate constant for the reaction
Given the following half-cell reactions, write the overall reaction and calculate the standard reduction potential for the cell. Mn3O4 (s) + 4H2O (l) + 2e- ? 3Mn(OH)2 (s) + 2OH- (aq)Eo = 0.002 V
A hydrochloric acid solution is standardized using 0.500g of sodium carbonate, Na2CO3. Find the molarity of the acid if 29.50mL are required to reach a phenolphthalein endpoint.
how many milliliters of concentrated hydrochloric acid solution 36.0 hcl by mass density 1.18 gml are required to
Precision can be judged by examining the average of the deviations from the average value for that data set. Calculate the average value of the absolute deviations of each measurement from the average for the first set.
which produce no significant response to interfering ions. It is then used to measure the pH of 0.0100 M NaOH in 0.50 M NaCl at 25 degrees C. What is the observed pH under these conditions if the true pH is 1.13?
In the presence of a tungsten catalyst at high temperatures, the decomposition of ammonia to nitrogen and hydrogen is a zero order process. If the rate constant at a particular temperature is 3.7*10^-6 mol/L*sec
if 0.75 moles of cao was reacted in the above reaction and all the heat was used to heat an amount of lead from 20.5 c
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