In this experiment, the temperature development that occurs when mixing a commercial drain cleaner (containing sodium hydroxide, NaOH) with water is investigated. Using a thermal imaging camera, the temperature change during the dissolution process is recorded. The goal of the experiment is to understand the thermal reaction and the associated heat development. Null Hypothesis: The …
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o3-mini-high In this experiment, it is investigated whether a simple arrangement consisting of an LED and a germanium diode in a microwave can absorb energy from high-frequency electromagnetic radiation and convert it into light. In doing so, a so-called LECTENNA (Light Emitting Rectenna) is …
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This experiment examines how the sound propagation of a mechanical egg timer behaves under normal pressure compared to an evacuated desiccator. The egg timer is triggered in both environments, and the perceived loudness as well as possible sound alterations are analyzed. This investigation provides insights into the acoustic properties of gases and their significance for …
In this experiment, the influence of the ambient pressure on the volume of a balloon is investigated. A slightly inflated balloon is placed in a desiccator and the external pressure is reduced by evacuating the container with a vacuum pump. This causes the balloon to visibly expand. When the air flows back in, the balloon …
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The speed of light is a fundamental natural constant that can be measured with high accuracy. In this experiment, a microwave oven, a Chocolate bar and butter are used to visualize standing waves and calculate the speed of light. By …
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An electroscope is a simple instrument used to detect electrostatic charge. It is based on the principle that like charges repel each other. In this experiment, an electroscope is built using a jam jar, a copper wire, and aluminum foil. Frictional electricity4[generation …
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This experiment investigates the catalytic effect of ash on the combustion of sugar. Initially, an attempt was made to ignite a sugar cube with a lighter, which was unsuccessful. Likewise, ash alone could not be ignited. However, after sprinkling ash onto the sugar cube, the mixture burned with a blue flame. This indicates that certain …
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This experiment visually demonstrates the thermal expansion of gases. A glass bottle is first placed in a cold environment, causing the air inside to cool down. The bottle is then brought into a warmer room and heated with hands. A wet coin placed on the bottle’s opening starts to rattle due to the temperature increase. …
Bath bombs are spherical or decoratively shaped solid bath additives that dissolve fizzingly in the bathwater, releasing fragrances, nourishing oils, and often colors. They are primarily used for skin care and relaxation. Their fizzing effect is based on a chemical reaction that occurs upon contact with water. In addition to the carbon dioxide produced, which …
Continue reading “Production of Bath Bombs: Chemical Principles and Practical Protocol”
