Acid Piranha.

Slides:



Advertisements
Similar presentations
Preparation of Salts By SK Chan. Preparing sodium chloride Add NaOH to HCl slowly to get a neutral solution. (How?) Concentrate the solution by evaporation.
Advertisements

Redox Reactions Atom 1 Atom 2 Gives electrons This atom Oxidizes itself (loses electrons) It’s the reducing agent This atom Reduces itself (gains electrons)
Properties of Hydrocarbons
Birds & Aging Many birds appear not to show the effects of cellular senescence (i.e. cells stop reproducing) This failure to show the physical effects.
Preparation of Salts.  In a acid-base reaction, a salt is formed when a metallic ion or an ammonium ion replaces one or more hydrogen ions in an acid.
Chapter 3 Physical and Chemical Properties Physical and Chemical Changes.
Changes in Matter.
Molar Concentration. Measuring Concentration Molarity (M): the number of moles of solute in 1 liter solution. Example: 0.5 moles of NaCl dissolved in.
Unit 9E and 9F Lesson 8: Metals and Non-Metal Oxides Objective: to learn the properties of metal and metal oxides.
Tuesday Safety Talk: Aqua Regia & Piranha Acid
Acid Reactions - Practical 1. SAFETY GLASSES ON! 2. Assemble in small groups 3. ONE person will collect a test tube, an acid, a metal sample, and a carbonate.
Wally’s dream job The first process to be done: Wafer Cleaning Wafers must be free of contamination at all stages of the antenna fabrication process.
Balancing Acidic Redox Reactions. Step 1: Assign oxidation numbers to all elements in the reaction. MnO 4  1 + SO 2  Mn +2 + SO 4  2 22 22 22.
REDOX REVIEW Assigning Oxidation Numbers Balancing Half Reactions.
Wally’s dream job The first process to be done: Wafer Cleaning Wafers must be free of contamination at all stages of the antenna fabrication process.
Balancing RedOx Equations G&D TEXT 9.2, Chang Chapter 19 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Redox Reactions. REDOX-OXIDATION STATES Day One.
Chapter 3 Physical and Chemical Properties
5.2 SALTS.
Permanganate reactions. Manganese exists in many different oxidation states, each with a characteristic colour including: Mn VII: MnO 4 – purple Mn VI:
Acid-Base Notes. Acid- Compound that forms hydrogen ions (H + ) when dissolved in water Base – compounds that forms hydroxide ion (OH - ) when dissolved.
Salts Noadswood Science, 2012.
Aqua Regia.
Semester Exam Demo Project
Elephant Toothpaste – Catalysts in Chemical Reactions Sharon Elementary Science Night A Chemical reaction is a process that leads to the transformation.
Acids & Bases They are everywhere.. In your food In your house EVEN IN YOU!!!!! Ch
Oxidation of Iron - An example of a Combination Reaction Vanderbilt Student Volunteers for Science Training Presentation Vinse/TnScore Fall 2014.
Science TAKS: Bell Ringers Prepared for the Scurry-Rosser High School Science Department Objective 1, B.01A The student will demonstrate an understanding.
19-2 Describing Acids and Bases
2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.
2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.
17-2 Describing Chemical Reactions. Symbol Represents one kind of an element Ex: C = carbon Ex: Na = sodium.
Acids, Bases, and pH.
High Frequency Radiation Weapon
1 Salts V2.0 Unit 11 (Pg 138).
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Substances, Compounds & Mixtures
Substances Matter that has the same composition and properties throughout is called a substance. When different elements combine, other substances are.
What Happens to an Acid or a Base in a Water Solution?
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Classifying Matter: Atoms, Elements, & Molecules
Learning Objectives To understand the pH scale and how it relates to acids and bases.
Acids and Bases March 8 and 9.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Redox Reactions.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Knowledge Organiser – Chemical Changes
Reacting compounds 11 January 2019.
Substances Matter that has the same composition and properties throughout is called a substance. When different elements combine, other substances are.
Proper Chemical Handling Procedures
Substances, Compounds & Mixtures
Acids and Bases Bundle 4: Water.
Substances, Compounds & Mixtures
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Oxidation and Reduction
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Acids and Bases.
Balancing Redox reactions in an acid or a base
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Chemistry 4: Chemical Changes
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
1)What is the pH of a M acid solution? pH = 3
Substances, Compounds & Mixtures
Presentation transcript:

Acid Piranha

Acid Piranha Solution Traditionally a 3:1 solution of sulfuric acid to 30% hydrogen peroxide (v:v) Glassware must be cleaned and dried prior to use! Highly exothermic Acid piranha will melt plastics, and the oxidative reaction is accelerated by water, acid, and base Do not generate excess piranha or cap your solutions! Only use in a well ventilated hood Slowly add peroxide to acid directly in the glassware to avoid uncontrolled reactions Piranha MUST be neutralized or manifested separately due to reactivity with organic molecules. http://blink.ucsd.edu/safety/research-lab/chemical/specific/piranha.html http://www.cmu.edu/ehs/fact-sheets/piranha-solution-handling.pdf