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An experiment shows that a 248 ml gas sample has a mass of 0.435 g at a pressure of 747 mm Hg and a temperature of 26 c. What is the molar mass of the gas?
What is the final temperature in a squeezed cold pack that contains 41.0 g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18J/g*C for the solution, an initial temperature of 26.5C.
What mass of sucrose should be combined with 462 of water to make a solution with an osmotic pressure of 8.30 at 270 ? (Assume the density of the solution to be equal to the density of the solvent.)
What effect would an increase in temperaure have on the experimentally determined Ksp of KHT?
Bond length is the distance between the centers of two bonded atoms. On the potential energy curve, the bond length is the internuclear distance between the two atoms when the potential energy of the system reaches its lowest value.
What is the partial pressure of each gas and total pressure of the mixture of gaases, in atmospheres, in the container?
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C. Cu(s) | Cu2+(aq, 0.0032 M) || Cu2+(aq, 4.48 M) | Cu(s)
Write the differential form of the energy and entropy representations of the fundamental equation. Identify the new intensive variables and how they relate to partial derivatives of the fundamental relations.
What is the expected freezing point of an aqueous solution of 2.62 kg of nitric acid, HNO3 , in a solution with a total mass of 5.91 kg? Assume that the nitric acid is completely ionized.
A 1.502 gram sample of a compound of aluminum and sulfur is known to contain exactly 0.540 grams of aluminum. Determine the empirical formula for the substance.
Ethers can be prepared by SN2 attack of an alkoxide ion on a alkyl halide. Suppose you wanted to prepare cyclohexyl methyl ether, shown below, using the SN2 reaction
If a 17.5 g sample of iron(III) oxide reacted with 5.00 L of carbon monoxide at 788 torr and 76 degrees celsius until one reactant is completely consumed, how many grams of iron are produced?
when 3.299 of iodine reacts with fluorine, 5.768g of IFx is formed. What is the value of x in product formula (IFx)?"
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