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- Видео 28
- Просмотров 59 341
HysickChem
Добавлен 27 ноя 2012
Видео
Bromthymol Blue/Acid and Base Reactions
Просмотров 1,3 тыс.2 года назад
A few drops of bromthymol blue indicator are added to sodium hydroxide (NaOH) solution and hydrochloric acid (HCl) solution.
Formation of a Precipitate
Просмотров 492 года назад
Several drops of barium nitrate solution are added to a well plate. Sodium sulfate solution is then added.
Baking Soda and Vinegar
Просмотров 242 года назад
A small sample of sodium bicarbonate (baking soda) is placed in a well plate. Vinegar is added.
Borax Bead Test Demo - Cobalt Ion
Просмотров 40 тыс.3 года назад
A solution of cobalt (II) nitrate is tested using the borax bead test. Cobalt ion produces a distinctive blue bead.
Reaction 7 - Decomposition of Potassium Chlorate
Просмотров 10 тыс.3 года назад
"13 Reactions Lab"- A sample of potassium chlorate is heated in a test tube. As the sample decomposes, the gas that is produced is tested by inserting a glowing wood splint into the test tube.
Reaction 9 - Decomposition of Copper (II) Carbonate
Просмотров 1543 года назад
"13 Reactions Lab" - A sample of copper (II) nitrate is heated in a test tube. The gas that is produced is bubbled through a smaller test tube of limewater.
Reaction 6 - Decomposition of Lead (II) Nitrate
Просмотров 1023 года назад
"13 Reactions Lab" - A sample of lead (II) nitrate is heated.
Reaction 13 - Double Replacement Precipitates
Просмотров 983 года назад
"13 Reactions Lab" - Several solutions are mixed. Insoluble precipitates are formed for two of the three combinations.
Reaction 5 - Concentrated Hydrochloric Acid and Concentrated Ammonium Hydroxide
Просмотров 3023 года назад
"13 Reactions Lab" - A few drops of concentrated hydrochloric acid solution are placed one one side of the beaker. A few drops of concentrated ammonium hydroxide solution are placed on the other side of the beaker.
Reaction 11- Calcium and Water
Просмотров 953 года назад
"13 Reactions Lab" - A piece of calcium is placed in a test tube of water. The gas is ignited and the solution is tested on red and blue litmus paper.
Reaction 2 - Potassium Bromide and Chlorine Water
Просмотров 1,3 тыс.3 года назад
"13 Reactions Lab" - Potassium bromide is dissolved in chlorine water solution. Hexanes are added to form two layers. Note the color of the top layer.
Reaction 12 - Zinc and Copper (II) Nitrate
Просмотров 4113 года назад
"13 Reactions Lab" - A piece of zinc metal is placed in a solution of copper (II) nitrate.
Reaction 3 - Zinc and Sulfuric Acid
Просмотров 2033 года назад
"13 Reactions Lab" - A piece of zinc metal is placed in sulfuric acid. The gas is ignited.
Reaction 1 - Burning Steel Wool (Iron)
Просмотров 1623 года назад
"13 Reactions Lab" - A piece of steel wool (iron) is burned.
Solving Limiting Reactants Problems (in moles)
Просмотров 13511 лет назад
Solving Limiting Reactants Problems (in moles)
Solving Limiting Reactants Problems (in grams)
Просмотров 41211 лет назад
Solving Limiting Reactants Problems (in grams)