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Solve an equilibrium problem (using an ICE table) to calculate the of each of the pH following solutions.
A. 0.13M CH3NH2
B. 0.13M CH3NH3Cl
C. A mixture that is 0.13M in CH3NH2 and 0.13M in CH3NH3Cl
53.0 mL of a 1.70 M solution is diluted to a volume of 278 mL. A 139-mL portion of that solution is diluted using 189 mL of water.
For an elderly patient with impaired renal function, the dose is reduced to 250 mg every 6 hours. Calculate the reduction in the daily dose, in milligrams.
From your current perspective, what do you think the greatest threat is to human health resulting from pollution? Why do you think so?
Analyzing a new reaction Consider the following elementary steps that make up the mechanism of a certain reaction: 1.3A>B+C 2. B+2D>C+F A. What is the overall reaction?
Molybdenum crystallizes in a body-centered cubic lattice (the Mo atoms are at the lattice points only). If the density of the metal is 10.3 g/cm3, what is the unit cell edge length in pm?
The solubility of CaSO4 in pure water at 0oC is 1.13 gram(s) per liter. What is the value of the solubility product.
Calculate the pH during the titration of 20.00 mL of 0.1000 M hydrazine N2H4(aq), with 0.1000 M HCl after 20.25 mL of the acid have been added. Kb of hydrazine = 1.7 x 10-6
Calculate the volume in mL of a 1.350 M HCI solution required to titrate the following solution.
The density of the unknown is 0.714g/mL. The Kf of nitrobenzene is 6.87 ^0C/m. Calculate the molar mass of the unknown.
what the oxidation state P in PO4^-2? what the oxidation state O in PO4^-2?
Calculate the quantity of NH3 is produced upon reaction of 4.0 moles of water and 65.0 g of CaCN2.
Nitrobenzene (C6H6NO2) is used in small quantities as a flavoring agent or in perfumes, but can be toxic in large amounts. It is produced by reaction of benzene (C6H6) with nitric acid
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