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Express the concentration of 0.0170M aqueous solution of fluoride in mass percentage and ppm. Presume density of solution is 1.00/gmL
demonstrate that an excess of hydrogen peroxide was used in the oxidation step of Fe(II) to Fe(III)
You are planning to use the technique of recrystallization to purify A and realize that you will first need to determine which solvent or solvent pair would be appropriate. Describe the solubility properties of the solvent that you would want to u..
Which element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?
Which statement is correct concerning the resulting titration curve when a weak acid is titrated with a strong base
A gas at constant temperature occupies a volume of 4.59 L and exerts a pressure of 895 torr. What volume (in L) will the gas occupy at a pressure of 642 torr
estimate the mass of the martian atmosphere given the following information the mean radius of mars is r 3386 km the
A weak monoprotic acid is titrated with NaOH, and the following data are recorded. Calculate the molar mass of the weak acid. original volume of acid solution = 50.00 mL mass of acid (a solid) = 0.3459 g
The specific rotation for enantiomerically pure sec-phenethyl alcohol is 42 degrees. What would the specific rotation of this 93% optically pure sample
Calculate the standard enthalpy of formation of gaseous carbon dioxide (CO2) using the following thermochemical information: 2 C(s) + H2(g) C2H2(g) H = +226.8 kJ 2 C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2O(l) H = -2599.3 kJ 2 H2O(l) 2 H2(g) + O2(g) H = +..
How do the strengths of London forces compare in CO2 and CS2? Which of these is expected to have a higher boiling point?
dinitrogen monoxide gas and 3.41g of carbon dioxide gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas. Be sure each of your answer entries has the correct number of significant digits..
An excess of aqueous AgNO3 reacts with 41 mL of 5 M K2CrO4(aq) to form a precipitate. What mass of the percipitate is formed
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