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From a consideration of the Lewis structure of the thiocyanate ion, SCN- in which carbon has double bond with both the sulfur and nitrogen atoms, what are the formal charges on the sulfur, carbon, and nitrogen atoms respectively?
There is a method/experiment called the "vapor density method." Beginning with the ideal gas equation, show how the density of a vapor may be determined by this method.
What concentrations of [K2HPO4] and [KH2PO4] will you need to make the total concentration 0.50 M? 3.) How many moles of K2HPO4 and KH2PO4 will you need? 4.) What mass of K2HPO4 and KH2PO4 will you need?
2NO (g)+ Br2 (g) yields 2NOBr (g) What is the rate of disappearance of Br2 when [NO]= 5.9×10-2 M and [Br2] = 0.26 M
the molecular weight of vincristine a pharmaceutical drug is 923.04. it is supplied in 1 mg per vial. you want to treat
the pH of a saturated solution of a metal hydroxide MOH is 9.68. calculate the Ksp for the compound
Calculate the molarity and the molality of an NH solution made up of 28.0 g of NH in 70.0 g of water. The density of the solution is 0.982 g.
describe the coordination geometry e.g. octahedral for each metal ion and the mxnlm formula for deoxy and oxy form of
the concentration of h ion in gastric juice is 0.1 m. ph of the protons arise from blood 7.4.compute the free energy
If the barometer at your house reads 767.2 mm of mercury what is the atmospheric pressure in kPa
What is meant by enriched uranium? 1.Enriched uranium is an uranium-containing substance in which its natural amount of uranium-235 was increased.
A solution is prepared by mixing 0.0300 mol CH2Cl2 and 0.0500 mol of CH2Br2 at 25°C. Assuming the solution is ideal, calculate the composition of the vapor
The heat capactiy of the calorimeter is 1630 J/degrees celsius, and the inital temperature was 24.58 degrees celsius. What was the final temperature in degrees celsius?
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