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Sodium Hydroxide Teacher Resources
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Middle school marine scientists compare the pH change in distilled and saltwater as acetic acid is added one drop at a time. Then they compare the pH change in both when sodium hydroxide is added. This experiment demonstrates the buffering ability of sea water. They apply the results to the waters around the Lost City hydrothermal vents.
In this thermometric titration worksheet, students titrate hydrochloric acid with sodium hydroxide to determine the concentration of hydrochloric acid. They measure the change in temperature of the solution, plot their data and use the graph to find the concentration of hydrochloric acid.
In this qualitative analysis activity, students read about all the different tests that can be done in chemistry to give qualitative results. Tests include flame tests, forming precipitates with sodium hydroxide, using sodium hydroxide to produce ammonia and testing for ions using different chemicals such as silver nitrate.
In a hypothetical scenario, food chemists use titration to concoct a brine solution for producing the crunchiest pickles. They also analyze store-bought pickle juices. In addition to reinforcing titration techniques, the lesson requires the use of significant figures and calculation of percent error. Consider this detail-oriented lab as a fun spin on the typical titration exercise!
Introduce high schoolers to chemical reactions with this series of activities. In a little over an hour, scientists observe four gas-producing reactions: the combination of hydrochloric acid and sodium hydroxide, placing pasta in vinegar, decomposition of ammonium chloride, and the mixing of iron with sodium chloride and water. In each, they identify the indicator that a chemical reaction occurred. The way the lesson is written leaves you well-prepared.
Does the change in energy of matter lead to a change in mass? Upcoming chemists compare the mass of equal-volume, but different-temperature liquids and materials both before and after a chemical reaction has occurred. In another activity, they examine product labels to find commonly used elements and compounds. They use zinc and sodium hydroxide to change the chemical makeup of a penny. These activities, though pertinent to chemistry, are only slightly related to each other. You may want to use some and not others depending on what concepts you are teaching.
Don't you wish you had the time to type up a study guide for your chemistry class? With this resource, there is no need! A chart comparing the properties of metals and non-metals tops the handout, followed by notes on the reactivity series. Finally, you will find an overview of fossil fuels. Use this as an outline for your lecture or to give a copy to junior chemists as notes or a study guide.
Here is a laboratory exercise where chemistry masters carry out an oxidation reaction to change ethanol into ethanal. They compare the original alcohol to the resulting aldehyde by forming a precipitate. Definitely aimed at learners experienced in the laboratory, this activity concludes by having them determine what type of reactions have taken place, describe the nature of the ethanal, and write chemical equations for all of the reactions that occurred in the process.
Did you know that driving 2,500 miles results in an entire ton of carbon emissions added to the atmosphere? This tidbit and others on how carbon dioxide is also increasing in ocean water are the focus of a powerful lesson plan. Participants are introduced to ocean acidification with a video, and then they carry out two investigations that will reveal the increasing pH of the world's oceans. This is a poignant lesson plan, perfect for encouraging youth to become environmentally aware citizens.
Demonstrate the importance of eye safety in the science laboratory! Acetone is sprayed on a bare, plastic-wrapped, and plastic-wrapped glasses-clad styrofoam plate to show the importance of protective clothing and eyewear. Phenolphthalein is mixed with sodium hydroxide in a contact lens simulation. Dilute sulfuric acid is dripped on a real pig eye, rinsed in water, and examined for damage to the pupil. This lab requires plenty of preparation time and materials, but the lesson is extremely impactful.
Seventh graders investigate acids and bases. In this acids and bases lesson plan, 7th graders use household items such as coffee, lemons and soap to define acids and bases. They observe a demonstration to show how indicators determine if a solution is an acid or a base. They observe red and blue litmus paper tests and they conclude the lesson plan by testing common household substances with litmus paper to determine if they are acids or bases.
Students write and balance five chemcial equations which have been observed throughout the process of completing the experiment. They use vacuum filtration to recover suspeneded particals from a colloidal suspension. Students correctly identify the copper or copper minerals in a recoverd sample of copper material
In this thermometric titration worksheet, students determine the concentrations of hydrochloric acid and ethanoic acid using a titration where they measure the temperature of the solution as they titrate. The equivalence point is found by the highest temperature reached. Students use a temperature probe, pH probe and a datalogger.
For this oxidation worksheet, students perform an experiment to change ethanol to ethanal through an oxidation reaction. Students test their product with various solutions and compare it to the reactions of the solutions with ethanol. Students write equations for the reactions they observed.