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If a 10.0 g sample of platinum metal has a volume of 4.67 mL, what is the density of platinum in g/cm3?
21.4 g/cm3
2.14 g/cm3
0.0467 g/cm3
467 g/cm3
none of these
Pressure was exerted with a piston on molten naphthalene at 95 degrees Centigrade. The vapor pressure of naphthalene under 1.0 bar is 2.0 kPa and its density is 0.962 g cm-3. What is its vapor pressure when the pressure on the liquid is 15 MPa?
Radon (Rn) has a mass number of 222 and an atomic number of 86 and decays by emission of an alpha particle. The product of this decay is, Identify the product of the nuclear reaction by providing its atomic symbol , mass number , and atomic number
Calculate the solubility of Carbon Dioxide in water at an atmospheric pressure of .50 atm.( a typical value at high altitude). Atmospheric Gas: CO2 Mole Fraction
Calculate the heat transferred, q. Is water relevant in finding the heat transferred since it is in mL and not in grams?
Calculate the pH during the titration of 25.1 mL of 0.565 M dimethylamine, (CH3)2NH with 0.170 M HCl after 14.2 mL of the acid have been added. Kb of dimethylamine = 5.4 x 10-4.
total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 122 gm of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7
Determined an aliquot of 0.03526M potassium permanganate solution required to make 100 mL of a 10-3 mol/L solution.
what volume of a 0.37 M Mg(NO3)2 solution contains 87g of Mg(NO3)2.
what volume of 0.100 M NaOH is required to precipitate all of the nickel (ll) ions from 150.0 mL of a 0.162 M solution of Ni(NO3)2
tris acid dissociation constant is 8.32 x 10 -9. I have 0.1 m soln of tris in protonated form, o.1m soln of HCL and NAOH, and ample distilled water. Describe the preparation of 1L soln of 0.02m tris buffer, ph is 7.8
Calculate the mass of the protein that must be dissolved in 40 mL of water to obtain this concentration
Which anion gives precipitate with Ba+2 ion? Iv) Which anion evolves a gas when acid is added? V) Which anion releases an odorous gas as a product?
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