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18. (5 pts.) A 155.0 mL portion of aqueous phosphoric acid solution was completely neutralized by...
18. (5 pts.) A 155.0 mL portion of aqueous phosphoric acid solution was completely neutralized by 45.38 grams of Lithium hydroxide. The chemical equation is: 3 LiOH (s) + H2PO4 (aq) → Li3PO4() + 3 H20 (1) The concentration of the phosphoric acid, in molarity, is: (a) 4.075 M (b) 1.611 M (C) 11.40 M (d) 3.942 M
18. (5 pts.) A 155.0 mL portion of aqueous phosphoric acid solution was completely neutralized by 45.38 grams of Lithium hydroxide. The chemical equation is: 3 LiOH (s) +H,PO, (aq) a Li,PO, (s) + 3 H20 (1) The concentration of the phosphoric acid, in molarity, is: (a) 4.075 M (b) 1.611 M (c) 11.40 M (d) 3.942 M
18. (5 pts.) A 155.0 mL portion of aqueous phosphoric acid solution was completely neutralized by 45.38 grams of Lithium hydroxide. The chemical equation is: 3 LiQH (s) + H3PO4 (ag) → Li3PO4 (s) + 3 H2O (1) The concentration of the phosphoric acid, in molarity, is: (a) 4.075 M (bude bill M (c) 11.40 M (d) 3.942 M 19.6.5 pts.) At 79.00°F the enthalpy of a reaction was found to be +342.8 KJ/mole and its entropy change was +395.0...
3A) Steam was heated within a set of pipes at a pressure of 88.6 psi. The enthalpy of vaporization, Hv, for water is 44.01 KJ/mole. According to the Claussius-Clapeyron model, the boiling point for water at this pressure is: (a) 309 oC (b) 154 oC (c) 100 oC (d) 144 oC 3B) A 155.0 mL portion of aqueous phosphoric acid solution was completely neutralized by 45.38 grams of Lithium hydroxide. The chemical equation is: 3 LiOH (s) + H3PO4 (aq)...
If a 25.0 mL sample of phosphoric acid, H3PO4, is completely neutralized by 137 mL of 0.100 M KOH, what is the molarity of the phosphoric acid? Given: H3PO4 + 3 KOH → 3 H2O + K3PO4
A 25.00 mL sample of a phosphoric acid solution is completely neutralized using 17.12 mL of 0.13 M sodium hydroxide. What is the initial concentration of phosphoric acid?
If 47.60 mL of 0.480 M lithium hydroxide is required to neutralize 53.6 mL of phosphoric acid, what is the molarity of the acid? H3PO4(aq)+3LiOH(aq)→Li3PO4(aq)+3H2O(l)
An aqueous solution of 0.100 M phosphoric acid (12.0 mL) is titrated with 0.400 M KOH as shown below. phosphoric acid has three pKas: 2.148, 7.198, 12.375. H3PO4(aq) + OH-(aq) H2PO4-(aq) + H2O(l) H2PO4-(aq) + OH-(aq) HPO42-(aq) + H2O(l) HPO42-(aq) + OH-(aq) PO43-(aq) + H2O(l) Calculate the pH of phosphoric acid solution before any KOH has been added. We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image
A 15 ml aliquot of 1.00 M phosphoric acid is titrated with sodium hydroxide using phenolphthalein as an indicator. If it takes 20.00 ml of sodium hydroxide to reach the endpoint, what is the molarity of the sodium hydroxide? Answer with appropriate significant digits. H3PO4 (aq) + NaOH (aq) --> H2O (l) + Na3PO4
n 14 1. An aqueous solution of phosphoric acid, H3PO4 contains 285 H3PO4 in 400 ml. solution, and has a duty of 135 g ml. Molama H3PO4 - 97.9951 g/mol). This has two portion questions Show the work clearly. a. Calculate the weight H3PO4 in this solution (4 pts) what is the concentration in mol L of this solution (pt)