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To find the pH of 0.050 M diethylamine we must use the Kb of diethylamine.The Kb value of diethylamine is as follows:Kb=1.3X10^-3Kb = [(C2H5)2NH2+][OH-]/[(C2H5)2NH] as diethylamine dissolves, some will react with water forming diethylammonium ion and hydroxide, which is not accounted for in the Kb equation. Because of this, we don't know the concentration of each ion, but we do know they will be the same. We'll call them x. The diethylamine concentration will then be 0.050 - x.Kb = x^2/(0.050 - x)1.3x10^-3 = x^2/(0.050 - x)since 1.3 x 10^-3 is not much smaller compared to 0.050, x will be significant so we cannot ignore it. Rearrange the equation and use the quadratic formula to solve for x..000065 - .0013x = x^20 = x^2 + 0.013x - .000065x = [OH]pOH = -log([OH])14 - pOH = pH
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∙ 9y ago
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∙ 11y ago12
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Is 0.5 smaller than 0050?
Yes because 0050 is the same as 50
Is diethylamine a non polar solvent?
YEs
What is ch3-ch2-nh-ch2-ch3?
diethylamine
What is the pH of a solution with 0001 M H3O?
3. since the [H+]=0.001 M then pH= -log[H+] -log(0.001)=3 pH=3.
What is the pH of 0.1 M HBr?
-log(0.1 M) = 1 pH
What type of reaction takes of diethylamine with HCl?
acid base
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- log(0.001 M NH4Cl) = 3 pH =====
What is the pH of 0.10 M HBr?
pH=1
What is the pH of a 0.5 M HF solution?
-log(0.5 M HF) = 0.3 pH
What is the pH of a .12 M solution of monochloroacetic acid?
- log(0.12 M) = 0.92 pH ---------------
What is the pH of a 0.000626 M solution of H2SO4?
- log(0.000626 M H2SO4) = 3.2 pH -----------
What is the pH of a 1.0x10-4m hcl solution?
- log(0.00450 M HCl)= 2.3 pH=======
