As noted above, [H3O+] = 10-pH. Since x = [H3O+] and you know the pH of the solution, you can write x = 10-2.4. It is now possible to find a numerical value for Ka. Ka = (10-2.4)2/(0.9 – 10-2.4) = 1.8 x 10-5. References Libre Texts: Calculating a Ka Value from ...
What is the Kb for the {eq}HCOO^- {/eq} ion? Kb and Ka: Ka is the acid dissociation constant. A large Ka value indicates a strong acid because it means the acid is largely dissociated into its ions. A Large Ka value also means the formation of products in ...
测定醋（稀醋酸）的Ka值 PASCO scientific1Chemistry Experiment Library: 06020 Science Work shop C31 Vinegar Experiment C31: Neutralization of Vinegar with Drain Cleaner (pH Sensor) (pH 传感器)Concept: acids, bases & salts概念：酸、碱和盐 Time: 30 m SW Interface: 300, 500 & 700 Macintosh_ file...
AcidDissociationConstant,Ka酸解离常数，KA Experiment 27 Chemistry with Calculators 27 - 1 Acid Dissociation Constant, K a In this experiment you will:• Gain experience mixing solutions of specified concentration.• Experimentally determine the dissociation constant, K a , of an acid.• ...
What is (H3O+) in a solution of 0.075 M HNO2 and 0.030 M NaNO2? Butanoic acid, C3H7COOH, has a pKa of 4.82. What is the value of Ka for this acid? In a triprotic acid, which Ka has the highest value? a. Ka1 b. Ka2 c. Ka3 d. all Ka have the same value a. What is...
I have to List the below with the strongest acid being 1 and the weakest acid being 4, i had a go with what i know just about the names, but the Ka values throw me. Hydrofluoric acid - KHF = 3.5 x 10-4 Sulfuric acid - Kh2so4 = 1.2 x 10-2 ...
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The value of {eq}K_a {/eq} for hypochlorous acid is {eq}3.50 \times 10^{-8} {/eq}. What is the value of {eq}K_b {/eq} for its conjugate base, {eq}ClO^- {/eq}? Weak Acid-Base Conjugate Pair: The partial dissociation of a weak Bron...
CH3COOH + H2O arrow H3O+ + CH3COO-What is the pKa of a weak acid if Ka = 4.0 x 10-4?What is the pKa value for 2,4-dinitrophenol? Is it an acid or a base?Identify each of the following as a Bronsted acid, base, both, or neither. (...