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The label on a one-pint bottle of water lists the following components. If the density is the same as pure water and you drink 4 bottles of water in one day, how many milligrams of each component will you obtain? fluoride 0.09
what is the balanced net ionic equation for the reaction below in basic solution? enter the coefficient for each
if the height of the mercury column in the leveling bulb is 20 mm greater than that in the gas buret and the atmospheric pressure is 650 mm, what is the pressure of the gas trapped in the buret?
The Ksp for silver sulfate (Ag2SO4) is 1.2 x 10-5 . Calculate the solubility of silver sulfate in each of the following a. water b. 0.10 M AgNO3 c. 0.20 M K2SO4.
Select a suitable substance to be sealed within the vial. (b) Within less than 10% error, what magnitude of pressures must the vial withstand?
A beaker contains 100 grams of 0.50 M NaCl. If you transfer 50 grams of the solution to anouther beaker, what is the molarity of the solution remaining in the first beaker?
Calculate the value of delta S when 1.85 mol CH3OH (l) of is vaporized at 64.7 C. The normal boiling point of methanol is 64.7 C.
Explain how size exclusion chromatography operates and how it could be used to isolate a protein with a molecular mass of 27,000 from an aqueous mixture of small molecules and salts.
Calculate the standard enthalpy of formation of liquid water (H2O) using the following thermochemical information: 2 C(s) + H2(g) C2H2(g) H = +226.8 kJ CO2(g) C(s) + O2(g) H = +393.5 kJ 2 C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2O(l) H = -2599.3 kJ H = kJ
What type of hybridization (according to valence bond theory) does Fe exhibit in the complex ion, [Fe(H2O)4(Cl)2]+?
each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain
For each of the following species, draw its Lewis-dot structure. If the species exhibits resonance, draw all the resonance hybrids. For each species, tell its shape, bond angles, hybridization of the central atom, and whether it is polar or nonpola..
at 80 deg c the vapor pressures of pure liquids x y z are 385 190 66 mm hg respectively. what pressure must be exerted
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