Interpretation:
The equilibrium direction should be identified given the
Concept introduction:
Equilibrium constants: The equilibrium constant is used to quantitative measurement of the strength of the acid and bases in the water.
Equilibrium direction: The every reactions at a specific temperature, it is depends only one value for (K), if large value of (K) implies that there are more products than reactants and that the equilibrium lies to the right side.
If small (K) values implies there are more reactants than products and the reaction lies to the left side.
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Chemistry & Chemical Reactivity
- Methanoic acid is also called formic acid. It has the chemical formula HCOOH(l). It is a colourless fuming liquid that is mainly used as a preservative. It exhibits the following equilibrium in water:HCOOH(aq) + H2O(l) → HCOO–(aq) + H3O+(aq) 3) A 35.0 mL sample of (monoprotic) lactic acid, C3H6O3, is titrated with 20.0 mL of a 4.0 x 10-4 mol/L sodium hydroxide solution. What is the pH of the resulting solution at the equivalence point, if Ka for lactic acid is 1.4 x 10-4? PLEASE HELP THIS IS VERY URGENTarrow_forwardA buffer solution is prepared from a generic weak acid "HG" and the salt KG. The K, for HG is 3.7 x 10. What is the correct equation for the dominant equilibrium in the buffer solution? O KG + HG HKG' + G O KG + H,O KOH- + HG O HG + H,O OH- + H2G O HG + H,O G + H2O* G+ H20 OH + HGarrow_forward(b) What will happen if acetic acid (HC2H3O2) is added to water? O An equilibrium will form between its molecular form, HC2H3O2, and the species formed by removal of water, C2H2O. O An equilibrium will form between its molecular form, HC2H3O2, and the species formed by addition of water, H3C2H3O3. O Acetic acid is a strong acid and will ionize completely. O An equilibrium will form between its molecular form, HC2H3O2, and the ionized form, H* and C2H3O2. O Acetic acid is a weak acid and will not ionize completely. Hint Attempts: 1 of 15 used Submit Save for Later TIng I aI system, SOme of UIS energy Can De transieIICU To une su t ST國 ост 15 MacBook Airarrow_forward
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- A buffer is made with sodium acetate (CH3COONa) andacetic acid (CH3COOH); the Ka for acetic acid is 1.80 x 10-5.The pH of the buffer is 3.98. What is the ratio of the equilibriumconcentration of sodium acetate to that of acetic acid?(a) -0.760 (b) 0.174 (c) 0.840 (d) 5.75 (e) Not enough informationis given to answer this question.arrow_forward(ii) Ph. - COOHarrow_forward24. A solution of volume 0.500 L contains 1.68 g NH3 and 4.05 g (NH4)2SO4. (a) What is the pH of this solution? (b) If 0.88 g NaOH is added to the solution, what will be the pH? (c) How many milliliters of 12 M HCl must be added to 0.500 L of the original solution to change its pH to 9.00?arrow_forward
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