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The density of seawater is 1.025g/mL as well as the NaCl concentration is 3.50% Presuming the seawater is an aqueous solution of NaCl, what is
a) The molarity
b) Molality
c) Mole fraction of NaCl in the solution
if a sample of gas has fixed volume, and under a standard atmosphere of pressure, if its temperature is raised from 20 degrees celsius to 40 degrees celsius
The Ksp of barium fluoride is 1.0 x 10^-6. The Ksp of calcium fluoride is 3.9 x 10^-11. What is the remaining concentration of the first ion to precipitate when the second ion begins to precipitate?
Dibenzoylmethane is not a methyl ketone, but it gives a positive result in the iodoform test when treated with NaOH and I2. Explain this result.
How many grams of KOH must be added to 0.500 L of the buffer to change the pH by 0.10 units
Determine the overall charge on each complex. a) hexachloroplatinate(IV) b) triamminetriiodocobalt(III) c) diaquadichloroethylenediaminecobalt(III)
If densities were addititive, what should be the density of a 50-50 mixture of propylene glycol and distilled water at 20 degrees Celsius? Note: d^20 = 1.0361 g/mL propylene glycol and d^20 = 0.99821 g/mL distilled water.
If a 4.86g of solid carbon dioxide was placed into an evacuated 2 L container, sealed, and then heated until it completely changed to a gas with a final temperature of 75 degrees calcium, what would be the pressure?
What is the theoretical yield of aspirin if 153 kg of salicylic acid is allowed to react with 179 kg of acetic anhydride?
balance the following equationcus agno3aq ags cuno32aqs and aq in parantheses refers to the phase of the reactants
an antacid tablet from brand a is broken in half. one of the pieces weighs 0.56g. this piece is stirred with water and
Calculate each of the following quantities for this change of state. If it is impossible to calculate a quantity from this given information, state this. (a) q; (b) w; (c) ?U; (d) ?H.
An air bubble initially trapped in the tip of the buret containing the standard NAOH disappears during the titration , how will this affect the reported number of moles in the unknown acid ?
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