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What volume of 0.250 M Na3PO4 is required to precipitate all the lead(II) ions from 180.0 mL of 0.550 M Pb(NO3)2
assuming the unknown acid has one acidic proton per molecule, what is the molecular formula of the unknown acid?
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more com- plicated, but this is a reasonable ?rst ap proximation.)
Twenty wt % of a styrene oligomer having a number average-degree of polymerization of 7 is mixed with a commercial polystyrene sample having a number average
How many water molecules are in a block of ice containing 1.50 mol of water (H_2O)?
What is the pressure of the gas in this mercury manometer if h = 73 mm and atmospheric pressure
Write the net ionic equation for each of these reactions and demonstrate how two of them add together to yield the third. Using your data and Hess's Law, determine the enthalphy of ionization of HC2H3O2.
Determine the new volume of the mixture if the constant is kept constant at 635 mmHg and all the energy released is converted to work to push the piston.
A gas cylinder contains only the gases radon, nitrogen, and helium. The radon has a pressure of 222 torr while the nitrogen has a pressure of 446 torr. If the total pressure inside the cylinder is 771 torr, what is the pressure that is due to the ..
What is the molarity of a solution made by dissolving 34.2 g of sodium chloride in 575 mL of solution
Describe and explain how each of the following experimental errors or variations might affect your results.
How many grams of ice at -9.4 can be completely converted to liquid at 6.2 if the available heat for this process is 5.96×103? For ice, use a specific heat of 2.01 and = 6.01.
Determine the partial pressure and the total pressure using Dalton's law of partial pressures - Determine the total pressure of the mixture.
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