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Environmental engineers utilizes alkalinity as a measure of the capacity of carbonate buffering systems in water samples Alkalinity (mol/L)= [HCO3- ] + 2[CO32- ]+ [OH - ] + [H+]. Determine the alkalinity of a water sample that has a pH of 9.9,26.0 mg/L CO32- and 65.6 mg/LHCO3-.
The precipitate that forms in the qualitative analysis of the chloride ions is AgCl. Calculate the mass of AgCl that should be produced when an excess of AgNO3 is reacted with 0.1900 g of [Co(NH3)5Cl]Cl2.
what are the special characters of hollow tube, herring bone and bambo like carbon nano tubes in chemistry?
Consider the mechanistic step in the conversion of 1-butanol to 1-bromobutane in which bromide ion displaces water from the oxonium ion What evidence, if any, is there that this step involves backside attack by the nucleophile?
It takes 47.0 J to raise the temperature of an 9.20 g piece of unknown metal from 13 degrees Celsius to 24.9 degrees Celsius. What is the specific heat for the metal
Calculate the H+ ion concentration in a 8.8 × 10-4 M Ca(OH)2 solution. A) 8.8 × 10-4 M D) 1.1 × 10-11 M B) 1.8 × 10-3 M E) 5.7 × 10-12 M C) 2.2 × 10-11 M
Please show your work, and I will rate you! TWO PART QUESTION A)What is the rate constant of a first-order reaction that takes 277seconds for the reactant concentration to drop to half of its initial value
The principle quantum number defines the shell (which is roughly, but not quite exactly, the row, or period, of the periodic table). Demonstrate the difference between the rows of the periodic table
What is the conductivity of a solution. How do the size and charge of ions affect the conductivity of a solution. Which of the following ions would exhibit the greatest conductivity? a)Li+ or CS+ ? b)Mg2+ or Al3+ ?
Calculate the molar concentration of illinic acid and of its conjugate base illinate ion (in moles/L; M) in a 3 M illinate buffer at pH 7.5. The pKa of illinic acid is 6.7.
A coffee-cup calorimeter contains 150.0g of water at 25.1C. A 121g block of copper metal is heated to 100.4C by putting it in a beaker of boiling water.
gold forms a substitutional solid solution with silver. compute the weight percent of gold that must be added to silver
If the sample contains a combined total of 1.75 grams per mole and has a total mass of 51.0 grams, what are the percentages of CO2 and Ne in the sample by mole?
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