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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) + H3PO4 (aq) → Li3PO4 (s) + 3 H2O (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) + 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
19.65 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 J/mole*K. The value of the Gibb’s free energy is: (a) +341.0 KJ/mole (bhu-461.0 KJ/mole (c) -341.0 KJ/mole (d) +224.6 KJ/mole
19. (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 J/mole*K. The value of the Gibb's free energy is: (a) +341.0 KJ/mole (b) -461.0 KJ/mole (c) -341.0 KJ/mole (d) +224.6 KJ/mole
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)...
PLEASE ANSWER BOTH QUESTIONS PLEASE ! 19. (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 J/mole*K. The value of the Gibb's free energy is: (a) +341.0 KJ/mole (b)_-461.0 KJ/mole (C) -341.0 KJ/mole (d) +224.6 KJ/mole 20. (5 pts.) The reaction between nitric oxide (NO) and chlorine (Cl2) to form nitrosyl chloride (NOCI) was found to occur as an elementary reaction as follows: 2 NO (g) + Cl2...
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