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A mixture contains H2 at 325 torr pressure, N2 at 475 torr pressure, and O2 at 650 torr pressure. What is the total pressure of the gases in the system?
Calculate the pH of a solution with the following: 5.12 moles of HCl are placed in a 3.00 L of water 4) Given the acid pKa is 4.76. Calculate the pH of a 0.35M acetic acid solution:
1. What are the shapes of the NMe4+, [I3]- and [I5]- ions? The hybridization of the atoms?
Calculate the mass of water produced when 9.11 g of butane reacts with excess oxygen. Express the mass of water numerically in grams.
A 0.050 M CaCl2 solution is adjusted to a pH = 8. Will Ca(OH)2(s) precipitate.
Which of the following elements are diatomic gases at 25 degrees celsuis and one atm: H, He, C, N, O, F, Ne, P, S, Cl, Ar, Se, Br, Kr, I, Xe, and Rn?
a proton in a linear accelerator has a de broglie wavelength of 138 pm. what is the speed of the
Draw the molecule by placing atoms on the grid and connecting them with bonds. Show the formal charges of all atoms in the correct structure. Include all lone pairs of electrons.
Write a chemical reaction demonstrating that SO2 is an acidic oxide. c) Write balanced chemical reactions demonstrating that Al2O3 is amphoteric.
What is the freezing point of this solution? The Kf for water is 1.86 C/m and the density of ethylese glycol is 1.1135 g/mL. Consider if the solute is an electrolyte or a non electrolyte.
At 10 degrees Celsius, the autoionization constant for pure water, Kw, is 2.92e-15. What is the hydronium ion concentration in pure water at this temperature
a sample of hydrogen was collected over water at 23oc and an atmospheric pressure of 735 mmhg. what is the pressure of
Calculate the pH of a buffer that contains 0.060M ammonium chloride
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