# 'Weak base hcl' diaporamas de présentation

## Acid-Base Neutralization

Acid-Base Neutralization. Some basics and behavior of salts. Acid- Base Neutralization Double Displacement Reactions. acid + base salt + water. KNO 3 + H 2 O. HNO 3 + KOH. HF + NaOH. NaF + H 2 O. 2. HCl + Ca(OH) 2. CaCl 2 + H 2 O. 2.

By mare
(694 views)

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## Strong Acid-Weak Base and Weak Acid - Strong Base

Strong Acid-Weak Base and Weak Acid - Strong Base. CH 3 COOH(aq) + OH - (aq) -> CH 3 COO - (aq) + H 2 O(l). Slow change in pH before equivalence point; solution is a buffer CH 3 COOH(aq)/CH 3 COO - (aq) At halfway point [HA] = [A - ] pH = pK a

By qiana (147 views)

## Example Problem: Weak Base

Example Problem: Weak Base. Calculate the pH of a 0.005M solution of Ammonia. 0.005 M ------- 0 M 0 M . I C E. -x ------- +x +x . 0.005-x ------- +x +x . K b =1.8x10 -5 =. Assumption check:.

By tanek (90 views)

## Weak Base Equilibrium (continued)

Weak Base Equilibrium (continued). HA H + + A -. HCN H + + CN -. Every weak acid has a corresponding weak conjugate base. eg:. Here, HA is a weak acid, and A - must be a weak base. (it also happens to be the conjugate base of HA).

By zia-chang (73 views)

## pH = -log [H + ] . Strong Acid . Strong base . Weak Acid. Weak Base.

pH = -log [H + ] . Strong Acid . Strong base . Weak Acid. Weak Base. “ Conjugate Acid – Base Pair ”  a proton donor & its corresponding proton acceptor . Stronger acid  lower pH. Stronger Base  higher pH.

By micah-vance (152 views)

## Weak Acid – Strong Base Titrations

pH curve for CH 3 COOH titrated with NaOH. pH at equiv. pt. 7. pH. B. mL of NaOH added. A. Weak Acid – Strong Base Titrations. The equivalence point is when, say, 50.0 mL of 0.10 M NaOH have been added to 50.0 mL of 0.10 M CH 3 COOH, but pH is > 7 at that point because.

By sidney (138 views)

## Weak Acid + Strong Base Titration

Weak Acid + Strong Base Titration. There are two key points in a titration process. Equivalence Point – the point in the titration when the moles of added base (OH - ) are equal to the moles of acid in the original sample. Equimolar acid and base species.

By ella (158 views)

## Strong base neutralizes weak acid

Strong base neutralizes weak acid. Strong acid neutralizes weak base. How do we calculate the pH of a buffer ? 2 ingredient problem 0.10 M CH 3 COOH + 0.20 M CH 3 COO - pH = 5.05. NaA ( s ) Na + ( aq ) + A - ( aq ). HA ( aq ) H + ( aq ) + A - ( aq ). K a [HA].

By river (100 views)

## Weak acid and base calculations

Weak acid and base calculations. What’s so hard?. Unlike strong acids and bases, weak examples do not dissociate fully. For example, a 1 molL -1 HCl solution dissociates fully, so we make the approximation that the [H 3 O + ] = 1 molL -1.

By robyn (132 views)

## Previously in Chem104: more acid/base reactions: weak / weak strong / strong strong / weak

Previously in Chem104: more acid/base reactions: weak / weak strong / strong strong / weak calculations Polyprotic acids. Today in Chem104: Titrations Buffers calculations. Titrations: a summary. 1) strong acid + strong base titrations. Have pH 7 at equivalence pt

By nissim-pugh (192 views)