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Calculate the molarity of the solution produced by mixing the following substances. (Assume that the volumes are additive.)
(a) 40.0 mL of 0.160 M NaCl and 65.0 mL of 0.133 M NaCl
and
Using modern analytical techniques, it is possible to detect strontium ions in concentrations as low as 2.0e+02 pg/mL. What is this detection limit expressed in each of the following units?
(a) molarity of Sr2+
(b) Sr2+ ions per cubic centimeter
A single strand of natural silk may be as long as 4.03 x 10^3 m. Convert this length into miles.
The thyroid horone thyroxine has the chenical formula C15H11Iodine4NO4. How many milligrams of C15H11Iodine4NO4 can be produced from 4.31x10^2 mg of iodine atoms, about twice the amount that a typical adult consumes in one day
Draw a picture of the following cell and write reduction half-reactions for each electrode.Pt(s)|Fe3+ (aq),Fe2+(aq)||CrO72-(aq)|Cr3+ (aq),HA(aq)|Pt(s)
Aspirin (C9H8O4) is produced from Salicylic acid (C7H6O3) and Acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ----> C9H8O4 + HC2H3O2 a) How much salicylic acid is required to produce 1.5 X 10^2, assuming that all o the Salicylic acid is converted to as..
the equilibrium would shift to the right producing more products the equilibrium would shift to the left producing more reagents the equilbrium would not be effected by the created pressure change the equilibrium would speed up the equilibrium wou..
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the visible portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transition
The final temperature of the the calorimeter is 24.0 C. What is the specific heat capacity of unknown metal? The specific heat capacity of water is 4.184 J g^-1 C^-1
3.5 grams of salicylic acid reacts with an excess amount of acetic anhydride. What is the theoretical yield
A solution of H2SO4(aq) with a molal concentration of 3.22 m has a density of 1.183 g/mL. What is the molar concentration of this solution
A sample of nitrogen gas occupies a volume of 3.87 liters at 52.8 oC and 2.11 atm. What will the new temperature (in °C) when the volume increases to 4.55 liters and the pressure remains constant?
What is the osmotic pressure of human blood at 37°C if human blood is isotonic to 0.16 M NaCl solution? Remember that NaCl almost completely ionizes in water.
entropies of atom combination to determine if any of the following reactions have an equilibrium constant greater than 1. Find the reaction with the greatest equilibrium constant. Find the reaction with the smallest equilibrium constant.
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