Hi need help with all of these 6 questions, please!!!
1.
A solution contains 0.143 M
sodium fluoride and
0.189 M hydrofluoric acid.
The pH of this solution is ___?
2.
A solution contains 0.443 M
potassium cyanide and
0.445 M hydrocyanic acid.
The pH of this solution is ___?
3.
The compound ethylamine is a weak base like
ammonia. A solution contains 0.182 M
C2H5NH3+
and 0.271 M ethylamine,
C2H5NH2.
The pH of this solution is ___?
4.
A solution contains 0.336 M
ammonium bromide and
0.475 M ammonia.
The pH of this solution is ___?
Hi need help with all of these 6 questions, please!!! 1. A solution contains 0.143 M...
A. The compound ethylamine is a weak base like ammonia. A solution contains 0.268 M C2H5NH3+ and 0.151 M ethylamine, C2H5NH2. The pH of this solution is . B.A solution contains 0.335 M ammonium bromide and 0.338 M ammonia. The pH of this solution is .
The compound ethylamine is a weak base like ammonia. A solution contains 0.230 M C2H5NH3 and 0.151 M ethylamine, C2H5NH2 The pH of this solution is A solution contains 9.00x10-2 M ammonium bromide and 0.418 M ammonia. The pH of this solution is
A) The compound ethylamine is a weak base like ammonia. A solution contains 0.180 M C2H5NH3+ and 0.408 M ethylamine, C2H5NH2. The pH of this solution is .B) A solution contains 0.204 M ammonium chloride and 0.359 M ammonia. The pH of this solution is
A) A solution contains 0.424 M sodium cyanide and 0.294 M hydrocyanic acid. The pH of this solution is .B) A solution contains 0.301 M potassium fluoride and 0.204 M hydrofluoric acid. The pH of this solution is .
1) Which of the following aqueous solutions are good buffer systems? . a. 0.29 M hydroiodic acid + 0.20 M sodium iodide . b. 0.12 M barium hydroxide + 0.29 M barium chloride . c. 0.14 M nitrous acid + 0.12 M potassium nitrite . d. 0.34 M ammonium nitrate + 0.36 M ammonia . e. 0.31 M hydrofluoric acid + 0.29 M potassium fluoride . 2)A solution contains 0.486 M NH4I and 0.480 M ammonia. The pH of this...
A solution contains 0.250 M ammonium chloride and 0.168 M ammonia. The pH of this solution is The compound ethylamine is a weak base like ammonia. A solution contains 0.494 M CH3NH3 and 0.132 M ethylamine, C2H5NH2. The pH of this solution is
Which of the following aqueous solutions are good buffer systems? 0.31 M hydrocyanic acid0.27 M sodium cyanide 0.29 M hydroiodic acid 0.20 M sodium iodide 0.27 M ammonium bromide + 0.31 M ammonia O 0.11 M sodium fluoride-0.27 M hydrofluoric acid 0.11 M hypochlorous acid 0.16 M potassium hypochlorite
Which of the following aqueous solutions are good buffer systems? . 0.10 M hydrofluoric acid + 0.17 M potassium fluoride 0.30 M hydrocyanic acid + 0.20 M sodium cyanide 0.23 M perchloric acid + 0.19 M sodium perchlorate 0.18 M barium hydroxide + 0.21 M barium bromide 0.29 M ammonium nitrate + 0.34 M ammonia
please write all correct answers, there's more than
one
Which of the following aqueous solutions are good buffer systems? 0.22 M hydrochloric acid + 0.19 M sodium chloride 0.26 M ammonium bromide + 0.30 M ammonia 0.13 M hydrofluoric acid + 0.17 M sodium fluoride 0.38 M hydrocyanic acid + 0.21 M potassium cyanide 0.10 M potassium hydroxide + 0.23 M potassium chloride Submit Answer Retry Entire Group 9 more group attempts remaining
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...