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Write the Lewis structure for OCCl2 (carbon is central) and determine whether the molecule is polar. Draw the three-dimensional structure of the molecule.
A 0.1036 g sample containing only BaCl2 and NaCl is dissolved in 50 mL of distilled water. Titration with 0.07916 M AgNO3 requires 19.46 mL to reach the endpoint. What is the % by wt. of NaCl in the sample
A solution consist of 37.6 g of calcium chloride CaCl2 dissolved in 262.0 g of water. Explain what is the boiling point of this solution? Define what is the freezing point of this solution?
Explain how many grams of sodium sulfide are formed if 10.23 g of hydrogen sulfide are bubbled into a solution containing 38.87 g of sodium hydroxide, Presuming the limiting reagent is completely consumed
a baseball is seen to pass upward by a window 22m above the street with the vertical speed 13ms. if the ball was thrown
Calculate the pH and pOH of a solution prepared by adding 10.0 mL of a 14.8 M KOH solution to 200 mL of water, then adding water until the volume of the solution is exactly 250 mL.
What are the values of [H+], [H2PO3-], and [HPO32-] in a 3.0 M solution of H3PO3? What is the pH of the solution?
What effect did the addition of acetanilide have on the melting point of the unknown component. What about the addition of phenacetin
Provide the structure of the ylide needed to prepare 3-ethyl-3-heptene from 3-pentanone using a wittig reaction
a 7.5- sample of hydrogen gas completely reacts with 60.0 of oxygen gas to form 67.5 of water. is the following data
The charge carrier density of GaAs at 26oC is 2.25x10^6 cm-3. What is the charge carrier density (in cm-3) at 176 C? The bandgap of GaAs is 1.42 eV.
Compute ΔS when 1.00 mol of water at 288 K is mixed with 1.00 mol of water at 370 K and the system comes to equilibrium in an adiabatic enclosure. Presume that Cp = 77 J K-1 mol-1 independent of T
if you were monitring the titation by visivle spectroscopy what wavelength would you select for the data analysis? why?
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