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Define ether, gravy, salad, white grape juice, seltzer water, beef stew, and sodium carbonate as a pure substance, heterogeneous mixture, colloid, or solution?
In a battery, water is used as a salt bridge, and the two electrodes are Carbon and Aluminum. Find the standard reduction potential of the battery, and indicate which electrode is the cathode and anode.
What is the composition in mole fractions of a solution of benzene and toluene that has a vapor pressure of 35 torr at 20 °C? Assume the mixture forms an ideal solution.
two vessels are labeled a and b. vessel a contains nh3 gas at 80 degrees celcuis and vessel b contains ne gas at the
a piece of metal with mass of 125grams is placed into a graduatedcylinder that contains 25.0ml of water raising the
2A(g) + 3B(g) → A2B3(g) If 0.5 atm of gas A is mixed in an evacuated reaction flask with 1.0 atm of gas B, what is the final pressure in the reaction flask? (assume that the reaction goes to completion)
In 2.00 min, 29.8ml of He effuse through a small hole. Under the same conditions of pressure and temperature, 9.85ml of a mixture of CO and CO2 effuse through the hole in the same amount of time. Calculate the percent composition by volume of the ..
molar mass of anbsp solvent is 68.2 gmol and a normal freezing point 31.9 oc. the freezing point depression constant k
A very crude model of the buckminsterfullerene molecule (C60) is to treat it as a collection of electrons in a cube with sides of length equal to the mean diameter of the molecule (0.7nm)
How can you tell from the information provided with the balanced equation. How many mol of O2 are required to form 3.20 mol Fe2O3. How much heat is exchanged when 14.3 kg of iron rusts
Calculate the equilibrium concentrations of NH3 and H2S if a sample of solid NH4HS is placed in a closed vessel and decomposes until equilibrium is reached
How many molecules of carbon dioxide are produced when 130 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
Polypropylene can be made with varying degrees of crystallinity. If it is processed to have an amorphus structure (where the side-chains are ordered randomly, which statements
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