Boric acid (H3BO3), Ka
= 5.4 × 10−10, is frequently used as an eyewash.
(a) Use Lewis structures to illustrate the equilibrium reaction of
Ka.
(b) Calculate the pH of 0.27 M boric acid solution.
pH =
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Boric acid (H3BO3), Ka = 5.4 × 10−10, is frequently used as an eyewash. (a) Use...
The acid dissociation constant Ka of boric acid H3BO3 is ×5.810−10. Calculate the pH of a 3.1M solution of boric acid. Round your answer to 1 decimal place.
Question 2 Boric acid has a Ka of 5.8 × 10-10. What is the pKa? Assume boric acid is H3BO3 and is monoprotic. Question 3 A 0.25 M solution of boric acid is mixed with a 0.75 M solution of NaOH. What is the pH of the solution if 7.5 mL of boric acid is mixed with 5 mL of NaOH? Question 4 What volume of boric acid solution (in mL) is required to fully neutralize the sodium hydroxide solution?
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Boric acid has a Ka of 5.8 × 10-10. What is the pKa? Assume boric acid is H3BO3 and is monoprotic.
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Calculate the pH of a 10-5 mol L-1 solution of boric acid. H3BO3 (pKa = 9.24). Solution: 6.90.
A solution is made that is 0.400 M H3BO3(Ka= 5.4×10−10) and 0.125 M HCNO (Ka= 2×10−4). Which answer approximates the pH of the solution: A) 0.28 B) 0.90 C) 2.05 D) 2.30 E) 4.83
QUESTION 40 Boric acid, Hybos, is commonly used in eyewash solutions in chemistry laboratories to nevare bases splashed in the eyes HBO (g) + 3NaOH(-+ 3H20) Nayo () A 0.433 M sodium Hydroxide solution is used to neutrale a 32.55 ml sample of boric acid. During an experiment, 21.05 m. of sodium hydroxide is required for complete neutralization of the boric acid to a phenolphthalein endpoint Calculate the number of males of borle acid neutralized by the sodium Hydroxide. Give...
Determine the percent ionization of a solution of boric acid that is 61 mM (Ka = 5.4 × 10-10). percent The number of significant digits is set to 2; the tolerance is +/-4%
(1) Boric acid sample (H3BO3) contains boron (Na2B407.10H2O) as impurity. The quantity of this sample was dissolved in distilled water to give 1 liter of A solution. (a) 25.00 cm3 of solution A required 8.80 cm3 of 0.01 M HCl solution for neutralizing, using methyl red as indicator. (b) In another 25.00 cm3 of A was added 8.80 cm3 of the 0.01 M HCl solution, and some cm3 of glycerol was added. The result is a uniform colorless solution. The...