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Determine the pH and the percentage of fully protonated weak acid/base for each of the solutions listed below:a) 85mM 1,6-hexanedioic acidb) 0.029M disodium arsenate (salt of arsenic acid)c) 40mL of 0.018M citric acid mixed with 5mL of 0.15mL of 0.15M Ca(OH)2d) 32mL of 0.6M sodium bicarbonate mixed with 130mL of 0.21M lithium carbonatee) 18mM cyclohexylamine hydrochloride
Compute the amount of heat essential to fully sublime ninety grams of solid dry ice (CO 2 ) at its temperature of sublimation if it is given that the heat of sublimation for CO 2 = 32.3 kj/mol express your answers in kilojoules?
NO (g) + O3 (g)-> NO2 (g) + O2 (g) For the reaction given, the frequency factor A is 8.7 x 1012 s-1 and the activation energy is 63 kJ/mol. What is the rate constant for the reaction at 75°C.
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
Explain why does ATP synthesis occur in the presence of Rotenone ( an inhibitor of one the reactions in the electron transport system.) if succinate is combined but not ATP synthesis doesn't occur if L-malate is added?
how many grams of potassium sulfate are required to make 385 ml of 2.5M solution
A chemist wants to make 6.5 L of a 0.270 M solution. What mass in grams should the chemist use?
Determine the minimum mass of Sodium bicarbonate or sodium hydrogen carbonate that should be added to the spill to neutralize it?
Calculate the mass (g) of pure Na3AsO4 (s) and volume (mL) of 1.50 M HCl that are required to make 100.0 mL of a buffer solution at a pH of 6.80 and an H2AsO4-(aq) concentration of 0.100 M
What mass of sucrose should be combined with 493 g of water to make a solution with an osmotic pressure of 9.00 atm at 320 K? (Assume the density of the solution to be equal to the density of the solvent.)
Estimate the average concentration of methylene chloride. Look up the TL V or the 1WA for methylene chloride and consider how the: evaporation might be performed.
What is the percent yield of a reaction in which 282 g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 114 g HCl?
A 0.1752g sample of silver nitrate was dissolved in 502.3g of distilled water. Calculate the weight molarity of silver in this solution.
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