the Kb of a weak base is 4.7E-9, what is the Ka of its conjugate acid? Do not include any units with your answer. Your answer should have two significant figures. For scientific notation use the same as that in the problem (i.e. 3.3E-2 is the same as 3.3 x 10-2). b) Diethylamine, (CH3CH2)2NH, has a Kb of 8.6 x 10-4. What is the pH of a 0.22 M solution of diethylammonium chloride, [(CH3CH2)2NH2]Cl? Your answer should be to two places past the decimal point.

A weak base has KB = 3.26 x 10-2. What is the pKB of this base? Report your answer to at least 1 decimal place.

one of our practice problems but the steps are throwing me off.

The acid dissociation constant K of trimethylacetic acid (HC(CH³)₂CO₂) is 9.33 × 10¯6. a Calculate the pH of a 3.6M solution of trimethylacetic acid. Round your answer to 1 decimal place. pH = - 0 X Ś

What is the conjugate acid of each of the following? What is the conjugate Dase of eacn? (a) NH Parts of the formula in your answer are transposed. Your answer appears to be missing a charge. Conjugate acid (b ) (CH₂)₂NH \table[[chemPad, (9) Help], [xlx =larr|l, Greek -],[(CH),NH,N What is the conjugate acid of each of the following? What is the conjugate base or eacn (UTIL SOLES- (a) NH3 Conjugate acid Conjugate base (b) (CH3)2NH Conjugate acid Conjugate base chemPad XX→→ chemPad XX→ NH₂ NH 2 NH4 NH 4 Parts of the formula in your answer are transposed. Your answer appears to be missing a charge. chemPad XX→ (CH4)2NH2 (CH_4)_2NH_2 chemPad XX→= Greek (CH₂)2N (CH_2) 2N Help Greek Help Greek X Help Greek juur Help

Please help

You dissolve 5.3 g of ascorbic acid (MW 176; pk 4.2, 11.6) in 150 mL of water. When the solution comes to equilibrium, what is the pH?

Kk.268.

I mostly need help setting up how to do the math for these problems. I also need help with knowing how to find which acid is the strongest.  Give the Ka or pKa values that should be entered in the blanks below. pKa = -log10ka ; Ka = 10-pKa (a) hydrocyanic acid: Ka = 4.92 x 10-10 ; pKa =           (b) acetic acid: Ka =          ; pKa = 4.75 (c) lactic acid: Ka = 8.40 x 10-4 ; pKa =            (d) formic acid: Ka =          ; pKa = 3.75 (e) Which of these acids is the strongest?

Use resonance structures to predict which is more acidic: phenol (C6H5OH) or ethanol (CH3CH₂OH). (Hint: phenol has a six membered carbon ring) Use the editor to format your answer