chloride A solution is prepared at 25 °C that is initially 0.69M in dimethylamine ((CH3)2NH), a weak base with K = 5.4 × 10-4, and 2.4M in dimethylammonium ((CH3)2NH₂CI). Calculate the pH of the solution. Round your answer to 2 decimal places. pH =

A solution is prepared at 25 °C that is initially 0.37M in nitrous acid (HNO₂), a weak acid with K -4.5 × 10 4, and 0.69M in sodium nitrite (NaNO2). Calculate the pH of the solution. Round your answer to 2 decimal places. a pH X G

What is the pH of a solution prepared by adding 60.4 g ethylammonium chloride (C2H5NH3CI, 81.55 g/mol) to 1.00L of a 0.300 M aqueous solution of ethylamine (C2H5NH2, 45.08 g/mol, Kp = 4.3 x 104 at 25°C)? Enter your answer in decimal format with two decimal places (value + 0.02).

A solution is prepared at 25 °C that is initially 0.94M in ammonia (NH3), a weak base with K, = 1.8 × 105, and 1.1M in ammonium bromide (NH4Br). Calculate the pH of the solution. Round your answer to 2 decimal places. pH = 0 5

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A solution is prepared at 25 °C that is initially 0.69M in dimethylamine ((CH3)2NH), a weak base with K = 5.4 × 10-4, and 2.4M in dimethylammonium ((CH3)2NH₂CI). Calculate the pH of the solution. Round your answer to 2 decimal places. chloride pH = ☐

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A solution is prepared at 25 °C that is initially 0.20M in chloroacetic acid (HCH₂CICO₂), a weak acid with K=1.3 x 10³, and 0.34 M in sodium chloroacetate (NaCH₂CICO₂). Calculate the pH of the solution. Round your answer to 2 decimal places. pH = 0 Explanation 81°F Mostly sunny 3 F9 Check $ 4 X с с FS % 5 S 2 1 F6 6 Q Search. F7 & 7 LDL F8 * 8 F9 F10 ( 9 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessi F11 ) 0 *+ F12 JE PrtSc + Insert = Delete Backspace 4) J ►/11 Num

HCN is a weak acid (K, = 6.20 × 10-0), so the salt, KCN, acts as a weak base. What is the pH of a solution that is 0.0405 M in KCN at 25 °C? pH =

The pH of a 0.61 M aqueous solution of HNO2 (Ka = 4.6 × 10–4 at 298 K) is ____.