Innovative and self-directed, EXPERIMENTS IN GENERAL CHEMISTRYFEATURING MEASURENET, 2nd Edition prepares students for the laboratory setting by. Experiments in General Chemistry Featuring MeasureNet Guided Inquiry, Self- Directed, and Capstone Second Edition Bobby Stanton University of Georgia Lin . Innovative and self-directed, EXPERIMENTS IN GENERAL CHEMISTRY: FEATURING MEASURENET, 2nd Edition prepares students for the.

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Place a weighing boat containing 0. Add 2 drops of the sodium hydroxide limited OH solution prepared in Step 20 to each of the test tubes. Obtain mL of unknown sodium chloride solution.

If a redox reaction occurs, indicate which element is oxidized and which element is reduced. What is the average percent error for the calculated percent by mass for the two trials? Remove the pH electrode from the 7. Does the metal ignite and burn?

Determine featurin Rf values for each metal ion and for each component in the unknown solution. Complete Steps 8—24 in Appendix E before proceeding to Step 6 below.

Should the exact mass of the cool water be recorded in the Lab Report? Write balanced formula unit and net ionic equations for these observations. Add 10—15 mL of 3 M aqueous ammonia to the mL beaker.


Each line on the cylinder is 0. When inserting glass experimenrs, a glass funnel, a glass rod, or a thermometer into a stopper, always lubricate the stopper and the glass item with glycerin.

The graded and meaurenet Procedure Proposal will be returned to each team one week before the lab period during which the experiment is to be performed. Place a clay triangle on an iron ring supported by a ring stand Figure 1.

Suspend the crucible inside the clay triangle. While holding a stirring rod in the center of the mL beaker, slowly pour the solvent solution down chemistgy stirring rod.

Equation 9 represents the dissociation of NaOH. Both react with NaOH to form insoluble metal hydroxides see Eqs. The pH of the solution, monitored with a pH meter, gradually increases. Write the formula of the precipitate formed in the spaces below when each pair of ions are mixed in aqueous solution.

Experiments in General Chemistry: Featuring MeasureNet

When writing total ionic equations, strong acids, strong bases, and watersoluble ionic compounds are written as aqueous ionic species. This page intentionally left blank Name.

Add 90— mL of distilled water to the acid solution. A student dried a wet crucible with a KimwipeTM. If the foil undergoes a change, record your observations in the Lab Report. The ink spots should be at the bottom of the paper, just above the surface of the solvent. Many transition metal ions form insoluble metal hydroxides upon reaction with NaOH solution.


Teams of students will rely on chemical knowledge learned and the laboratory skills and techniques acquired so far in this course to design and perform this self-directed experiment. Monatomic ions have oxidation numbers that are equal to their charge. A student records two potassium emission spectra: Decant the water from the graduated cylinder containing the unknown metal into a beaker.

Experiments in General Chemistry: Featuring MeasureNet

Calculate the number of moles of unknown metal ion solution used in the reaction. In Part A of this experiment, student teams will determine the best material to be used as a coffee-cup calorimeter. Use a spatula to remove any residual material in the crucible.

Calculate the moles of acid added to the beaker. Obtain a crucible and lid.