'Bromothymol blue' diaporamas de présentation

HSC CHEMISTRY CORE TOPIC 2

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Bromothymol Blue Lab

Bromothymol Blue Lab. Bromothymol Blue Lab. Bromothymol blue is a chemical indicator that changes color as the pH of a solution changes. It is yellow in acidic solutions and blue in basic and neutral solutions. When CO 2 is dissolved in water, it creates carbonic acid, pH 5.7.

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Cultivation of baceria

Cultivation of baceria. By. Dr. Emad AbdElhameed Morad. Lecturer of Medical Microbiology and Immunology. INOCULATION PROCEDURE. P lating out technique: Aims at spreading out the bacteria on the surface of the medium. Each bacterium will divide to give a separate colony.

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Double Bond: C 2 H 4

Double Bond: C 2 H 4. An sp 2 hybridized C atom has one electron in each of the three sp 2 lobes. Side view of the sp 2 hybrid + the unhybridized p orbital. Top view of the sp 2 hybrid. Double Bond: C 2 H 4.

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IS IT ALIVE?

IS IT ALIVE?. By: Jody Anderson, Camille Groh, and Hailey Napier. Does it Have Cells?. Procedure/Tools. We took a sample and made a wet mount with it. We then investigated the sample under a microscope. Observations/Results.

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Chapter 3

Chapter 3. Water and the Fitness of the Environment. Water is a Polar molecule. It can Hydrogen bond with other water molecules. Hydrogen bonding imparts several important properties Cohesion- sticks to other water Adhesion- sticks to other polar substances Surface tension-

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Getting To Know Photo!! Photosynthesis That Is.

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Alka Seltzer Lab

Alka Seltzer Lab. Observations:. Alka Seltzer: smells like vinegar, powdery, chalkish, crumbly, triangular, black dots, white, smooth on top, delicate, words, jagged on edges, Bromothymol Blue: clear, light blue, see through, minty, no bubbles, thin, watery,.

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Snails + Water Weeds

Snails + Water Weeds. Snails. Ivory and blue mystery bulb snails Apple Snails Family Ampullariidae Genus Pomacea. These Ampullariidae have both a gill and a lung. Snails use photosynthesis or respiration?. Water Weeds - Wisteria. Hygrophila difformis Aquarium plant

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Evidence of Photosynthesis

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Is It Alive?

Is It Alive?. Unknown #2 Chris, Isabelle, Max and Perla. What questions did we try and answer?. What did we do to investigate the answers to your questions?. Is it made of one or more cells? Does it adapt to different environments? Does it convert energy? Does it grow and develop?

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Tuesday, November 23, 2010

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Carbon Dioxide from Respiration

Carbon Dioxide from Respiration. Carbon dioxide from respiration is demonstrated by two chemical reactions. PURPOSE. To demonstrate that carbon dioxide is expelled from the lungs by seeing it react with limewater (calcium hydroxide) and bromothymol blue indicator. DEMONSTRATION:.

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Acids and Bases

Acids and Bases. Definitions. Our definitions of acids and bases come from the work of Arrhenius in 1884. There are other definitions you may learn later. Acids. Acids are compounds that ionize to form H + ions. Ex. HCl ? H + + Cl - is the ionization reaction for hydrochloric acid.

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Warm up

Warm up. Describe in your own words what an acid is. Warm up answers. question. Is the chemical an acid or a base and what is its pH? Calcium Chloride A. Universal Indicator Solution B. Bromothymol blue C . Sodium Hydrogen Carbonate. hypothesis.

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Warm up

Warm up. Draw a diagram that shows how a hydrogen ion is formed. Warm up answers. question. Is the chemical an acid or a base and what is its pH? Lead Nitrate A. Universal Indicator Solution B. Bromothymol blue C . Sodium Hydrogen Carbonate. hypothesis.

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Chemical Reaction Experimentation

By: Kalee , Kayse , Abigail, and Andrew. Chemical Reaction Experimentation. Question:. What combinations will react with each other?. Hypothesis:.

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Cellular Respiration

Cellular Respiration. C 6 H 12 O 6 + 6 O2 ? 6 CO 2 + 6 H 2 O Glucose + Oxygen ? Carbon dioxide + Water + Energy (as ATP). Bromothymol Blue. When you add bromothymol blue to water, it turns blue, indicating that the pH is near 7.

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BW- Paper Lab

BW- Paper Lab. BACKGROUND: In water, carbon dioxide dissolves to form a weak acid . As a result, an acid-based indicator such as bromothymol blue can be used to indicate the presence of carbon dioxide. Without carbon dioxide: indicator is blue ;

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