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13 Consider 1.0 molb of two related acids, HS and H,Se, dissolved in 1.0 or 2.0L...
4. Equal moles of the indicated acids are dissolved in the ammon of he acid be...
4. Equal moles of the indicated acids are dissolved in the ammon of he acid be beakers below. In which solution will the percent ionization of water shown in the of the acid be the lowest? Op -HC a. All have equal percent ionization of acid. c.Ⅳ e. 5. For a 0.05 M H2SOs solution, which of the following relationships is true? b. [SO327 키HS037 C [HSOs 1> [H2SO3] dHSH) 6. Which of the following reactions is associated with the...
4. (two marks) When diluting concentrated acids, always add a. a small acid volume to a...
4. (two marks) When diluting concentrated acids, always add a. a small acid volume to a larger volume of water b. a tiny volume of water to the acid c. a large acid volume to a small amount of water d. a 50-50 mixture of acid and water e. none of the above 5. (four marks) What volume of water should be added to 500 mL of a 1.0 mol/L CuSO4 solution to dilute it to 0.5 mol/L? a. 500...
8a) 0.263 moles of para-aminobenzoic acid (HC,H.NO2) are dissolved in enough water to make a final...
8a) 0.263 moles of para-aminobenzoic acid (HC,H.NO2) are dissolved in enough water to make a final volume of 2.0 L. The resulting solution has a pH of 2.58. What is the hydronium ion concentration of the solution? a. 0.132 M b.0.13 M c. 0.88 M d.0.00263M a. Ob. O c. Od. 8b) 0.263 moles of para-aminobenzoic acid (HC,H.NO,) are dissolved in enough water to make a final volume of 2.0 L. The resulting solution has a pH of 2.58. What...
The ionization constants for the diprotic acid H 2S are 1.0 x 10 -7 and 1.3 x 10 -13. H2S (aq)&nb...
The ionization constants for the diprotic acid H 2S are 1.0 x 10 -7 and 1.3 x 10 -13. H2S (aq) + H2O (l) <=> HS -(aq) + H3O +(aq) Ka = 1.0 x 10 -7 HS -(aq) + H2O (l) <=> S-2 (aq) + H3O +(aq) Ka = 1.3 x 10 -13 What is the equilibrium concentration of HS - in a 0.300 M solution of H2S?
1.0 mol of ethanol and 1.0 mol of acetic acid are dissolved in water and kept...
1.0 mol of ethanol and 1.0 mol of acetic acid are dissolved in
water and kept at 100? degrees C. The volume of the solution is 250
mL. At equilibrium, 0.25 mol of acetic acid has been consumed in
producing ethyl acetate. Calculate Kc? at 100 degrees C
for the reaction: C2H5OH?(aq) +
CH3CO2H(aq)
CH3CO2C2H5(aq)
+ H2O?(l)
5, 7, and 8 please! 5. What mass of calcium chloride must be dissolved in water...
5, 7, and 8 please!
5. What mass of calcium chloride must be dissolved in water to renare 200 mL of a solution with concentration of 0.50 M? 6. What is the coefficient for oxygen when this equation is balanced? HS(g) + 20 (8) SO(g) + H2O(l) (B)3 (C)4 (D) 5 7. Ammonia is prepared by the Haber Process. N2 +3 H2< =>2 NHỊ If 2.0 mol of N, and 3.0 mol of Hare combined together, what is the percent...
14. Given equal concentrations of the following acids, which exhibits the greatest amount of ionization in...
14. Given equal concentrations of the following acids, which exhibits the greatest amount of ionization in water? (3 pts) A) nitrous acid B) chlorous acid C) ascorbic acid D) hydrobromic acid E) citric acid 15. Which solution has the highest pH? (3 pts) A) 0.10 M HBr(aq) B) 0.10 M HI (aq) C) 0.10 MHF (aq) D) 0.10 M HCl(aq) E) 0.10 M HClO4(aq) 16. Which of the following solutes, dissolved in 1.0 kg of water, would be expected to...
1. The acid ionization constant for Cu(H2O)6+2 when dissolved in water is 1.0 x 10-7. Calculate...
1. The acid ionization constant for Cu(H2O)6+2 when dissolved in water is 1.0 x 10-7. Calculate the pH of a 0.0760 M solution of this compound. 4.06 4.13 1.12 8.12 2. The mole fraction (X) of a solute in a solution is defined as ____. a. Moles of Solvent/Moles of all Solution Components b. Moles of Solute/Liters of Solvent c. Moles of Solute/Moles of Solvent d. Moles of Solute/Moles of all Solution Components 3. An aqueous solution is said to...
a Many laboratories keep bottles of 1.0 M solutions of the common acids on hand. Given...
a Many laboratories keep bottles of 1.0 M solutions of the common acids on hand. Given 12.1 M of the concentrated acid HCl, determine how many milliliters of concentrated acid would be required to prepare 196 mL of a 1.0 M solution of the acid. mL b Many laboratories keep bottles of 1.0 M solutions of the common acids on hand. Given 15.9 M of the concentrated acid HNO3, determine how many milliliters of concentrated acid would be required to...
When dissolved in water, 1.0 mol of MgCl2 will dissociate into ____[A]____ mol of of Mg2+and...
When dissolved in water, 1.0 mol of MgCl2 will dissociate into ____[A]____ mol of of Mg2+and ____[B]____ mol of Cl-. If you dissolved 1.0 mol of MgCl2 in water to make 1.0 L of this solution, the concentration would be ____[C]____ M, the osmolarity would be ____[D]____ osmol/L, the concentration of cations would be ____[E]____ Eq/L.
4. Equal moles of the indicated acids are dissolved in the ammon of he acid be beakers below. In which solution will the percent ionization of water shown in the of the acid be the lowest? Op -HC a. All have equal percent ionization of acid. c.Ⅳ e. 5. For a 0.05 M H2SOs solution, which of the following relationships is true? b. [SO327 키HS037 C [HSOs 1> [H2SO3] dHSH) 6. Which of the following reactions is associated with the...
4. (two marks) When diluting concentrated acids, always add a. a small acid volume to a larger volume of water b. a tiny volume of water to the acid c. a large acid volume to a small amount of water d. a 50-50 mixture of acid and water e. none of the above 5. (four marks) What volume of water should be added to 500 mL of a 1.0 mol/L CuSO4 solution to dilute it to 0.5 mol/L? a. 500...
8a) 0.263 moles of para-aminobenzoic acid (HC,H.NO2) are dissolved in enough water to make a final volume of 2.0 L. The resulting solution has a pH of 2.58. What is the hydronium ion concentration of the solution? a. 0.132 M b.0.13 M c. 0.88 M d.0.00263M a. Ob. O c. Od. 8b) 0.263 moles of para-aminobenzoic acid (HC,H.NO,) are dissolved in enough water to make a final volume of 2.0 L. The resulting solution has a pH of 2.58. What...
1.0 mol of ethanol and 1.0 mol of acetic acid are dissolved in
water and kept at 100? degrees C. The volume of the solution is 250
mL. At equilibrium, 0.25 mol of acetic acid has been consumed in
producing ethyl acetate. Calculate Kc? at 100 degrees C
for the reaction: C2H5OH?(aq) +
CH3CO2H(aq)
CH3CO2C2H5(aq)
+ H2O?(l)
5, 7, and 8 please!
5. What mass of calcium chloride must be dissolved in water to renare 200 mL of a solution with concentration of 0.50 M? 6. What is the coefficient for oxygen when this equation is balanced? HS(g) + 20 (8) SO(g) + H2O(l) (B)3 (C)4 (D) 5 7. Ammonia is prepared by the Haber Process. N2 +3 H2< =>2 NHỊ If 2.0 mol of N, and 3.0 mol of Hare combined together, what is the percent...
14. Given equal concentrations of the following acids, which exhibits the greatest amount of ionization in water? (3 pts) A) nitrous acid B) chlorous acid C) ascorbic acid D) hydrobromic acid E) citric acid 15. Which solution has the highest pH? (3 pts) A) 0.10 M HBr(aq) B) 0.10 M HI (aq) C) 0.10 MHF (aq) D) 0.10 M HCl(aq) E) 0.10 M HClO4(aq) 16. Which of the following solutes, dissolved in 1.0 kg of water, would be expected to...
a Many laboratories keep bottles of 1.0 M solutions of the common acids on hand. Given 12.1 M of the concentrated acid HCl, determine how many milliliters of concentrated acid would be required to prepare 196 mL of a 1.0 M solution of the acid. mL b Many laboratories keep bottles of 1.0 M solutions of the common acids on hand. Given 15.9 M of the concentrated acid HNO3, determine how many milliliters of concentrated acid would be required to...
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