Chemistry: The Central SciencePrentice Hall, 1997 - 466 pagine A standard in the industry, this best-selling lab manual was written in conjunction with Brown/LeMay/Bursten's Chemistry: The Central Science, 7/e but can be used as a stand-alone lab manual. This edition has been updated to reflect environmental concerns. |
Dall'interno del libro
Risultati 1-3 di 86
Pagina 194
... unknown to the nearest 0.01 g . Gently remove the stopper from the test tube , making sure that no naphthalene is lost , and add your unknown to the test tube . Replace the stopper and stir gently until all the unknown has dissolved ...
... unknown to the nearest 0.01 g . Gently remove the stopper from the test tube , making sure that no naphthalene is lost , and add your unknown to the test tube . Replace the stopper and stir gently until all the unknown has dissolved ...
Pagina 195
... unknown 5. Weight of paper 6. Weight of sulfur or unknown Cooling - curve data Pure naphthalene Temp . Time g g 60 60 60 g g 60 60 60 Naphthalene + sulfur or unknown Temp . Time 7. Freezing point of pure naphthalene , from cooling curve ...
... unknown 5. Weight of paper 6. Weight of sulfur or unknown Cooling - curve data Pure naphthalene Temp . Time g g 60 60 60 g g 60 60 60 Naphthalene + sulfur or unknown Temp . Time 7. Freezing point of pure naphthalene , from cooling curve ...
Pagina 227
... Unknown Acid With the aid of a pipet bulb , pipet a 25 - mL aliquot of your unknown acid solution into a 250 - mL beaker and carefully immerse the previously rinsed electrodes in this solution . Measure the pH of this solution by ...
... Unknown Acid With the aid of a pipet bulb , pipet a 25 - mL aliquot of your unknown acid solution into a 250 - mL beaker and carefully immerse the previously rinsed electrodes in this solution . Measure the pH of this solution by ...
Parole e frasi comuni
acetic acid AgCl AgNO3 ammonium anions aqueous aspirin atoms Ba² base beaker beginning this experiment boiling bottle Bunsen burner buret reading calcium calorimeter carbonate cations cell centrifuge chloride color colorless compound concentration Date Laboratory Instructor decantate determine dissolved distilled water drops electrons Erlenmeyer flask evaporating dish example Fe3+ flame flame test formula glass H₂ H₂O H3O+ heat HNO3 hydrogen hydroxide insoluble ionic equation ions isomers KMnO4 liquid logarithm measure metal mixture mL of water mmol molar mass molarity molecular molecules NaCl NaOH naphthalene NH4+ Ni² number of moles oxalate oxide oxygen percent pipet potassium precipitate pressure Procedure react reaction reagent report sheet REVIEW QUESTIONS salt sample show calculations sodium sodium carbonate sodium hydroxide solid soluble solution solvent standard deviation stirring stopper substance sulfide sulfur sulfuric acid temperature test tube thermometer tion titration unknown volume wash weight yellow zinc