1 / 40

400 likes | 616 Vues

Salts. Salt Solutions. The salts of weak acids can recombine with water producing basic solutions. Salt Solutions. The salts of weak bases can recombine with water producing acidic solutions. Salt Solutions. A - + H 2 O HA + OH - B + + H 2 O H + + BOH.

Télécharger la présentation
## Salts

**An Image/Link below is provided (as is) to download presentation**
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.
Content is provided to you AS IS for your information and personal use only.
Download presentation by click this link.
While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

**Salt Solutions**• The salts of weak acids can recombine with water producing basic solutions**Salt Solutions**• The salts of weak bases can recombine with water producing acidic solutions**Salt Solutions**• A- + H2O HA + OH- • B+ + H2O H+ + BOH**Salt Problem**• Calculate the pH of a 0.20 M solution of NaBz • Ka = 6.4 x 10-5**Salt Problem**• Calculate the pH of a 0.10 M solution of R-NH3Cl • Kb = 2.5 x 10-5**Drill:**Calculate the pH of a 0.18 M solution of KC2H3O2 • Ka = 1.8 x 10-5**Drill:**Calculate the pH of a 0.16 M solution of KC7H5O2 • Ka = 6.4 x 10-5**Salt Applications**• Salts of strong acids & weak bases make acidic solutions**Salt Applications**• Salts of strong bases & weak acids make basic solutions**Salt Applications**• Salts of strong acids & strong bases make neutral solutions**Predict Relative pH**• NaAc BaCl2 • KNO3 NH4Br • KHSO4 NH4Ac**Predict Relative pH**• KAc NaCl • KClO2 NH4Cl • K2SO4 NaI**Anhydrides**• Compounds without water; that when added to water, form other compounds**Acid Anhydrides**• Non-metal oxides that form acids when added to water**Basic Anhydrides**• Metal oxides that form bases when added to water**Predict Relative pH**• Na2O SO2 • NO2 CO2 • CaO Al2O3**7.4 g of Ca(OH)2 was added to 2.0 L of 0.075 M H2CO3.**Calculate the molarity of all ions present in the solution.Ka1 = 4.4 x 10-7Ka2 = 4.7 x 10-11**Calculate the pH of 0.10 M HF in 0.20 M NaF. Ka HF = 6.5 x**10-4**Calculate [H3PO4], [H2PO4-1], [HPO4-2], [PO4-3], [K+], [H+],**& pH of 1.0 M KH2PO4 in 0.50 M K2HPO4. Ka1 = 7.5 x 10-3Ka2 = 6.2 x 10-8Ka3 = 4.2 x 10-13**Calculate pH of:**0.50 M MOHin 0.20 M MCl Kb = 5.0 x 10-5**Calculate pH of:**0.20 M MCl Kb = 5.0 x 10-5**Review of Acid/Base descriptions and Acid/Base, Buffer, &**Salt Equilibria**Strong Acids**Strong Bases**Acid rxns**Base rxns**A/B Equilibrium Constants**KW, KA, KB, & pH**Calculate pH of:**• 0.025 M HNO3 • 0.020 M KOH**Calculate pH of:**• 2.0 M HNO2 • Ka = 2.0 x 10-4**Calculate pH of:**• 3.0 M HZin • 2.0 M KZ • Ka HZ = 3.0 x 10-5**Calculate pH of:**• 0.20 M KQ • Ka HQ = 2.0 x 10-5**150 mL of 0.10 M KOH was added to 100.0 mL of 0.10 M H2CO3.**Calculate [H2CO3], [HCO3-], [CO3-2], [H+], [OH-], & pH of the solution.Ka1 = 4.4 x 10-7Ka2 = 4.7 x 10-11**Calculate [H3A], [H2A-1], [HA-2], [A-3], [K+], [H+],[OH-], &**pH of 2.0 M KH2A. Ka1 = 4.0 x 10-3Ka2 = 5.0 x 10-8Ka3 = 2.5 x 10-13**Calculate pH of:**• 2.0 M HQ • Ka = 2.0 x 10-6**Calculate pH of:**• 6.0 M HZin • 4.0 M KZ • Ka HZ = 3.0 x 10-5**Calculate pH of:**• 0.20 M KQ • Ka HQ = 2.0 x 10-7

More Related