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Question- The vapor pressure of pure water at 96 degrees C is normally 657.6 mmHg, but decreased to 622.8 mmHg upon addition of an unknown amount of barium hydroxide, Ba(OH)2, to 247.5 g of water at this temp. How many grams of barium hydroxide were added? Assume complete dissociation of solute.
Explain the each step. Explain the process and each step.
along with the weight of sodium acetate (4.01g) and the volume of acetic acid used (10mL) to prepare the buffer, the expected pH of it was 5.43. What is the expected pH of buffer plus added HCl?
All living things contain carbon. Most of this carbon is stable carbon-12. However, a small percentage will be carbon-14, a radioactive isotope of carbon that decays with time. As living things eat and breath, carbon is constantly recycled and the..
an element t burns in air with a blue flame forming white fumes which dissolve in water to form a solution that turns blue litmus paper red(t is not the actual symbol)
ozone reacts with nitric oxide discharged from jet planes to form oxygen gas and nitrogen dioxide. 0.740g of ozone
A fire occurred in a storage room where a steel cylinder of oxygen-enriched air was kept. The pressure of the gas in the cylinder was 300 atm at 20 C.
Problem- Gallium metal, ga, crystallizes in a body-centered arrangement. What is the density of Ga if its atomic radius is 147.1 pm
In the titration of a monoprotic acid with a solution of sodium hydroxide of known concentration, what quantities are equal at the equivalence point
Available are solid oxalic acid dihydrate, solid sodium hydrogenoxalate monohydrate, solid sodium oxalate, and liquid water. State the amounts and identities of the reagents, and the glassware, that you would use to prepare 100 mL of a buffer solu..
In the expression for f which you obtain, use a power series expansion of the exponential function
The fathom was originally defined as the length of man's outsterched. it is now defined as 6.00 ft. calculate a resoanble estimate of the surface are of an adult humman' body in fathom.
Calculate the change in entropy (S) for reversible cooling 1 Mole of an ideal monatomic gas from 30 degrees C to 0 degrees C under:
Calculate the concentrations of H3O+ and the pH of each acidic solution. Since HCl is a monoprotic acid (an acid that donates only one proton or hydrogen atom permolecule to an aqueous solution), the H3O+ concentration is equivalent to the HCl mol..
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