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What is the molecular weight of a gas if a 21.0 g sample has a pressure of 836mmhg at 25.0 degrees c in a 2.00L flask?
Imagine that you have a 7.00 litre gas tank and a 3.00 litre gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
What is the theoretical yield of bismuth when 393 g of Bi2O3 reacts with excess carbon as shown below? Bi2O3 + C(s) => Bi(s) + CO(g) (not balanced)
how might you be able to build a buffer solution of a given molarity at any pH without doing a single Henderson- Hasselbalch calculation?
Calculate the mass of CuS produced and the concentration of H+ ion produced by bubbling H2S into 1.00 L of 0.10 M CuCl2 (aq) solution. The net ionic equation is:
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10-6m. Could the electron make a transition from the ground state to a higher energy level?
What is the hydronium ion concentration in an aqueous hydrochloric acid solution that has a pOH of 11.540 ?
Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
A 1- flask is filled with 1.20 g of argon at 25 C. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.
In a high-altitude city, the normal atmospheric pressure is 619.0 torr. Use the Clausius-Clapeyron equation to estimate the boiling point of water in this city. The heat of vaporization of water is 40.70 kJ/mol.
At its boiling point, the vaporization of 0.579 mol CH4 requires 4.76 kJ of heat. What is the enthalpy of vaporizating of methane?
Half an alka seltzer tablet is dissolved and completely reacted in 25mL of HCL, and the gas produced displaces 0.240L of water from a secondary flask.
consider the titration of 25.00ml of 0.650 M propanoic acid, HC3H5O2 ( Ka = 1.3 X 10^-5), with 0.750 M sodium hydroxide, NaOH, and answer the following questions?
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