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Potassium hydrogen phthalate, has a molecular mass of 204.2 g/mole. How many moles of potassium hydrogen phthalate are in a 0.500 gram sample?
What is the molality of chromium(III) chloride in a solution prepared by dissolving 75.2 g chromium(III) chloride hexahydrate (CrCl3· 6H2O) in 250.0 g of water.
The element lithium has two naturally occurring isotopes, 7Li (isotopic mass 7.0160 amu, abundance 92.5 %) and 6Li (isotopic mass 6.0151 amu, abundance 7.50 %). Calculate the atomic mass of lithium.
How can one make five serial solutions of a stock solution of silver ion if the stock solution has a concentration of 0.100M, make a table of the volumes and solutions
Consider the following reaction. N2 + 3H2 -> 2NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
Suppose you have a sample of sodium weighing 11.62 g. How many atoms of sodium are present in the sample?
Consider that a single box represents an orbital, and an electron is represented as a half arrow. Orbitals of equal energy are grouped together.
Calculate the percent yield if the actual yield of aluminum oxide is 0.423mol.
The enthalpy of combustion of benzoic acid is commonly used as the standard for calibrating constant-volume bomb calorimeters; its value has been accurately determined to be 3226.7kJ/mol.
The numbers indicate the relative amounts present at equilibrium, compared to 1-butene as the standard. 1-Butene: 1.0 cis-2-Butene: 7.2 Trans-2-Butene: 85 Explain this trend qualitively.
Calculate the freezing point and boiling point of the solution. Constants may be found here. benzene C6H6 Kf = 5.12 *C/m Freezing Point = 5.49 *C Kb = 2.53 *C/m Normal boiling point = 80.1 *C
when sodium hydroxide naoh of 4.00 g of was dissolved in water of 150.00 grams a value for deltat of 10.00 degree
determine what volume of .1 m hbr is required to neutralize 50 ml of .140 m barium hydroxide?considering the given
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