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Calculate the hydronium ion concentration and the pH of the solution that results when 20.0 mL of 0.15M acetic acid, is mixed with 5.0mL of 0.17M sodium hydroxide.
a 54.1 gram sample of an unknown hydrocarbon was burned in an excess of oxygen to form 88.0grams of carbon dioxide and 27.0grams of water. what is a possible molecular formula for the hydrocarbon?
Consider the gas-phase reaction A + 2B 2C + D. Starting with 1.0 mole of A and 1.0 mole of B in 2.0 liter container, the reaction proceeds to equilibrium at T = 103C with 8.6 × 10-2 moles of C now present.
Calculate the concentration of all the species, ions, and molecules, and the pH of the following solutions. All solutions have a total volume of 1.00 liter and contain
If 290. mL of 0.130 M KOH are mixed with 200. mL of 0.430 M KOH, what is the molarity of the final solution?
Which of the following element is the most inert according to the prediction of the Lewis bonding theory?
Glycerol, C3H8O3, is a water-soluble liquid of density 1.2656 g/ml at 15oC. Calculate the molarity of a solution of glycerol made by dissolving 40.000 ml glycerol at 15oC in enough water to make 250.000 ml of solution.
Consider the reaction H2(g) + Br2(g) 2 HBr(g), which is exothermic as written. What would be the effect on the equilibrium position of adding a suitable catalyst
the equation of line determined from a beer's law plot is y=0.195x+0.4. what is the resistance of an unknown water sample if the assumed concentration is 650ohms.
Octane ratings are assigned to gasoline mixtures based on their ability to prevent knocking relative to isooctane. Estimate the energy released during the combustion of 1.00 mol of pure isooctane.
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s) 2 Hg(l) + O2(g) Hrxn = 181.6 kJ (a) How much heat is needed to decompose 504 g of the oxide? kJ
Lake Lianna is fed by two rivers, the Matthew and the Andrew. You have made careful water chemistry measurements throughout the year and found that the two rivers have the following pH and alkalinity
The true rate constant for a reaction is just that, a constant( at the constant temperature). Would your calculated value for k be higher than, lower than, or equal to the real value of k if 5 wt% bleach was unknowingly substituted with 8wt% bleac..
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