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What is are the units that come from the multiplication of mL and kPa?
the nutritional calorie calorie is equivalent to 1 kcal. onepound of body fat is equivalent to about 4.1 multiplied by
how many grams of dry nh4cl need to be added to 2.30 l of a 0.100 m solution of ammonianh3 to prepare a buffer solution
1) The normal freezing point of ethanol (CH3CH2OH) is -117.300 °C and its Kfp value is 1.99 °C/m.
The equilibrium concentration of HA will be less than the stoichiometric concentration because some or all of HA ionizes.
What is the reduction half-reaction for the following overall cell reaction? Pb 2+(aq) + 2 Ag(s) ? Pb(s) + 2 Ag+(aq) Choose one: Pb 2+(aq) + 2 e- ? Pb(s) Ag(s) + e- ? Ag+(aq) Pb 2+(aq) + e- ? Pb(s) Ag+(aq) + e- ? Ag(s)
If you have an acidic solution with a pH of 4.6, what is the concentration of H+ (or [H+]). For the solution in (a) what is the concentration of OH-
For the above rxn, if 0.0001 M of B and 0.0001 M of C were added at the same time, which way would the rxn shift, or would it remain unchanged
A solution of a specific vitamin has ?max = 273 nm and a concentration of 6.51 × 10-7 M. The absorbance of the solution at 273 nm is A = 0.180. What is the molar absorptivity of the vitamin at 273 nm? (sample pathlength = 1.00 cm)
The saturated vapor pressure of mercury is 0.0020 mmHg at 300 K and the density of air at 300 K is 1.18 g/L. (a) Calculate the concentration of mercury vapor in air in mol/L. (b) What is the number of parts per million (ppm) by mass of mercury in ..
how much heat in kj would be required to vaporize 1.00 L of diethyl ether (C4H10O), density is 0.714g/mL at 298 K, if the enthalpy of vaporization at this temperature is 26.0 kj/mol?
Solid argon (Ar) is face-centered cubic. The edge length of the unit cell is 4.79 angstroms (1.00 angstrom= 1.00 x10-8cm). Compute (a) the radius of Ar in cm, (b) the volume of the unit cell in cubic centimeters
find the specific solubilities (in g/100g H2O) in both cold and hot water for AgCl, PbCl2, and Hg2Cl2.
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