A buffer solution contains 0.435 M KHCO3 and 0.321 M Na2CO3. If 0.0286 moles of sodium hydroxide are added to 125 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume does not change upon adding sodium hydroxide)
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A buffer solution contains 0.435 M KHCO3 and 0.321 M Na2CO3. If 0.0286 moles of sodium...
A buffer solution contains 0.392 M hydrofluoric acid and 0.357 M potassium fluoride . If 0.0229 moles of sodium hydroxide are added to 125 mL of this buffer, what is the pH of the resulting solution? (Assume that the volume does not change upon adding sodium hydroxide.) pH =
1.) A buffer solution contains 0.267 M acetic acid and 0.348 M potassium acetate. If 0.0285 moles of hydrochloric acid are added to 125 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume change does not change upon adding hydrochloric acid) 2.) A buffer solution contains 0.334 M hydrocyanic acid and 0.226 M potassium cyanide . If 0.0144 moles of sodium hydroxide are added to 125 mL of this buffer, what is...
A buffer solution contains 0.384 M KHCO3 and 0.239 M Na2CO3. If 0.0464 moles of potassium hydroxide are added to 225.0 ml of this buffer, what is the PH of the resulting soulution? (Assune the volume does not change) I saw a few others posted this question on here, but is there a way to do this problem without using the Ka of HCO3? Either way itd be great to see how to do this problem. Thanks!
A buffer solution contains 0.224 M NaHCO3 and 0.367 M Na2CO3. If 0.0485 moles of hydroiodic acid are added to 250 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume does not change upon adding hydroiodic acid) pH =
A buffer solution contains 0.384 M hydrofluoric acid and 0.460 M sodium fluoride. If 0.0183 moles of nitric acid are added to 125 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume change does not change upon adding nitric acid) pH = ????
A buffer solution contains 0.355 M hypochlorous acid and 0.347 M sodium hypochlorite. If 0.0243 moles of hydrochloric acid are added to 125 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume does not change upon adding hydrochloric acid) pH=?
1. A buffer solution contains 0.256 M hydrofluoric acid and 0.308 M potassium fluoride. If 0.0414 moles of hydrochloric acid are added to 225 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume does not change upon adding hydrochloric acid) pH = 2. A buffer solution contains 0.328 M ammonium chloride and 0.331 M ammonia. If 0.0396 moles of sodium hydroxide are added to 225 mL of this buffer, what is the...
A) A buffer solution contains 0.336 M KHSO3 and 0.447 M Na2SO3. If 0.0144 moles of hydroiodic acid are added to 125 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume change does not change upon adding hydroiodic acid) pH = B) If 0.0335 moles of perchloric acid are added to 250 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume change does not...
A) A buffer solution contains 0.255 M hypochlorous acid and 0.394 M potassium hypochlorite. If 0.0590 moles of perchloric acid are added to 250. mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume change does not change upon adding perchloric acid) pH = B) A buffer solution contains 0.462 M ammonium bromide and 0.311 M ammonia. If 0.0351 moles of potassium hydroxide are added to 225 mL of this buffer, what is...
1) A buffer solution contains 0.346 M hydrofluoric acid and 0.392 M sodium fluoride . If 0.0239 moles of potassium hydroxide are added to 125 mL of this buffer, what is the pH of the resulting solution ? (Assume that the volume does not change upon adding potassium hydroxide. ) pH = _______ 2) A student needs to prepare a buffer made from HF and KF with pH 2.904. If Ka for HF is 7.2x10^-4, what ratio of [HF]/[F-] is...