Dichromate - Study guides, Class notes & Summaries

Histotechnology - Tissue FixationAdditive fixatives Mercuric chloride Chromic acid Picric acid Formaldehyde Glutaraldehyde Osmium tetroxide Potassium dichromate Glyoxal Zinc salts Nonadditive fixatives Alcohols Acetone Acetic Acid Coagulant Fixatives Mercuric acid Chromic acid Picric acid Zinc salts Alcohols Acetone Acetic acid Noncoagulant Fixatives Formaldehyde Glutaraldehyde Osmium Tetroxide Potassium Dichromate Glyoxal Are coagulant fixatives addit...

Chemistry 121 Exam #1 Questions and Answers 100% Pass Hydroxide - Correct Answer ️️ -OH- Acetate - Correct Answer ️️ -C₂H₃O₂⁻ Nitrate - Correct Answer ️️ -NO₃⁻ nitrite - Correct Answer ️️ -NO₂⁻ Oxide - Correct Answer ️️ -O²⁻ Sulfide - Correct Answer ️️ -S²⁻ Sulfite - Correct Answer ️️ -SO₃²⁻ Sulfate - Correct Answer ️️ -SO₄²⁻ Carbonate - Correct Answer ️️ -CO₃²⁻ Chromate - Correct Answer ️️ -CrO₄²⁻ Dich...

BOD (biological oxygen demand)measure of how quickly bio-organisms consume oxygen in a water sample COD (chemical oxygen demand)faster way to measure oxygen demand in a sample; indirectly measure amount of bio-matter in the water sample Dichromate ion dissolved in sulfuric acid Percent of Earth's water than is seawater97% Amount freshwater trapped in glaciers3/4ths Groundwaterwater located beneath the Earth's surface (often more than 1 km down)

Histotechnology - Fixatives, StainsAdditive fixatives - correct answers Chemically link, add themselves on to tissue and change it - Mercuric chloride - Chromium tetroxide - Zinc sulfate Nonadoptive fixatives - correct answers Organic compounds that act on tissue without chemically combining with it - Acetone - Alcohols Dissociate bound water molecules from tissue protein groups - Shrinkage, hardening with overexposure Coagulant fixatives - correct answers Establishes a network in...

OCR A Level Chemistry A (H432) Chemistry B (H433)Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction is heated under reflux using the equipment shown in the diagram below. What is the reason for heating under reflux? A. to ensure even heating B. to prevent any substances escaping C. to boil the mixture at a higher temperature D. to allow efficient mixing Your answer [1] 2. A chemist compares the rates of hydrolysis of 1-chloropropane and ...

The primary purpose of fixation is to: a. stop enzymatic action b. remove the water from the tissue c. provide support for the tissue d. autolyze the tissue - Answer-a. enzymes are proteins and rendered inactive by fixation Which of the following fixatives contains picric acid, formalin and acetic acid a. Zenker b. Helly c. Bouin d. Zamboni - Answer-c. Bouin The ratio of fixative to tissue should be a. 1:2 b. 5:10 c.15:20 d. 25:50 - Answer-c. 15 times to 20 times Tissue must be wa...

Histotechnology - Tissue Fixation Question and answers already passed 2023/2024 Additive fixatives Mercuric chloride Chromic acid Picric acid Formaldehyde Glutaraldehyde Osmium tetroxide Potassium dichromate Glyoxal Zinc salts Nonadditive fixatives Alcohols Acetone Acetic Acid Coagulant Fixatives Mercuric acid Chromic acid Picric acid Zinc salts Alcohols

Propane (C₃H₈) reacts with oxygen in the air to produce carbon dioxide and water. In a particular experiment, 38.0g of Carbon Dioxide are produced from the reaction 22.05g of propane with excess oxygen. What is the % yield in this reaction? -94.5 -66.0 -86.4 -38.0 -57.6 correct answer: 57.6 Gaseous argon has a density of 1.40 g/L at standard conditions. How many argon atoms are in 1.00L of argon gas at standard conditions? -4.76x10²² -6.02x10²³ -3.43x10²⁵ -1.59...

The primary purpose of fixation is - Answer To stop enzymatic action Which fixative contains picric acid, formalin, and acetic acid? - Answer Bouin The volume of fixative should exceed the volume of the tissue by - Answer 15-20 times Tissue must be washed in water after fixation in - Answer Zenkers Which fixative contains formalin, potassium dichromate, and mercuric chloride? - Answer Helly Precipitate left in tissues that have been fixed in solutions containing mercuric...

CHM 1100C QUIZ 3 with 20 Updated Questions and Answers Graded A+;Rasmussen College CHM 1100C QUIZ 3 with 20 Updated Questions and Answers Graded A+;Rasmussen College 1. What is the molecular formula for strontium hydroxide? a. Sr (OH )2 b. Ba( OH )2 c. S e (OH )2 d. S t (OH )2 2. Xylose is a carbohydrate that contains carbon, hydrogen, and oxygen. The empirical formula of Xylose is CH2O, and its molar mass is 150.1g/mol. Find the molecular formula of Xylose. a. C5 H 10 O5 b....