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Find an article that illustrates why the use of electromagnetic radiation important to a real-life application. And explain the article
The active ingredient in aspirin is acetylsalicylic acid (HC9H7O4) a monoprotic acid with Ka = 3.3 10-4 at 25°C. What is the pH of a solution obtained by dissolving two extra-strength aspirin tablet
What is the half-life (in years) of 44Ti if a 1.0 ng sample decays initially at a rate of 4.8*10^3 disintegration s/s
If the pKa for acetic acid, found in commercial white vinegar is 4.754 at 298K, then calculate the pH, percent ionization, and pOH of a 0.585 M acetic acid of 5% vinegar solution. Do not forget to first determine the Ka, setup an "ICE" table, defi..
If ragweed pollen in the image appears to be 6 cm define what is the actual size of the pollen in micrometers? The ragweed picture has a 3000x magnification.
Presume that you have a solution of AsCl(3) with a concentration of 1*10(^-8) M. Presume the density of the solution is 1.00 g/mL. The molar mass of AsCl(3) is 181.28 g. Exchange this concentration to ppb on a mass to mass basis.
The electron in the n=1 state of a hydrogen atom absorbs a photon with an energy of 2.12x10^-18 J. What is the final state of the electron
Draw the product of cyclohexene oxide, sodium methoxide and hydronium workup. Draw the product of 2-methylpropene oxide, and hydrogen chloride in diethylether workup
The main component of many phosphate fertilizers is Ca (H2PO4)2.H2O.
If a pipette was incorrectly calibrated so that it transfers 5% too much solution, would the density you calculated for the liquid tend to be larger or smaller then the correct value. explain.
Calculate the final temperature of 32 mL of ethanol initially at 11 degrees C upon absorption of 562 J of heat.
What is the percent by mass of NaHCO3 in a solution containing 60 g of NaHCO3 dissolved in 600 mL of H2O?
The total mass of solid unknown dissolved in the sample was 0.1200 g. If the sample were dissolved to a final volume of 100.0 mL, and a 25.00 mL sample of the solution required 36.32 mL of EDTA solution, find the mass percent of CaCO3 that was pre..
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