Lab #4: Aqueous Reactions Introduction: In this experiment we studied the two different types of aqueous chemical reactions‚ double replacement and single replacement. In a double replacement reaction one or both of the products is an insoluble ionic compound or otherwise known as a precipitate; or a non-electrolyte; or a gas. In a single replacement reaction there is typically a metal and an ionic compound consisting of a metal cation and a non-meatl anion. Singel replacement ractions occur when
Premium Chemical reaction Chemistry Ionic bond
Materials: 50 ml Beaker 600 ml Beaker 100 ml Beaker 1000 ml Beaker 250 ml Beaker Candle 400 ml Beaker Stopwatch Matches Procedure: 1. Goggles were acquired from the goggle cabinet. 2. The candle was lit and as I placed the 50 ml beaker over the candle‚ my partner started the stopwatch to record how long the candle burned under the beaker. 3. When the flame extinguished‚ I recorded how long the flame lasted under the 50 ml beaker. 4. Steps 2 & 3 were repeated
Premium
Separating a Mixture of Compounds Exp. No. 2 name Chemistry 145 February 2‚ 2014 I. Purpose The purpose of this experiment was to separate this mixture into components‚ determine the mass and percentage of each component. In addition to test the accuracy of an alternative method of subtraction to find the mass of the sodium chloride directly. Start with a mixture of sand (SiO2)‚ sodium chloride (NaCl)‚ and ammonium chloride (NH4Cl)‚ and use these separation processes: sublimation filtration
Premium Sodium chloride Sodium Ion
easier concentration to titrate. Using a 25cm3 pipette‚ washed out with some of the NaOH solution‚ transfer 25cm3 of the solution to a 250 cm3 volumetric flask‚ and fill to the line with distilled water. The alkali will now have a concentration of 0.1 mol dm-3. • In the titration‚ the NaOH will be in the burette‚ and will be titrated into HCl in a conical flask: NaOH (aq) + HCl (aq) NaCl (aq) + H2O (l) • The reaction is 1:1 between NaOH and HCl‚ so a solution of 0.2 mol dm-3 should be used.
Premium
Make beautiful charts :- 1. Glimpses of the 2012 2. Healthy and Junk Food 3. 3R’s - Reduce‚ Refuse and Recycle New Delhi: The year 2012 was full of numerous major events in the fields of politics‚ business‚ cinema and sports which shaped the outgoing year and grabbed a lot of public attention. At home‚ we saw many important happenings like UPA’s trouble shooter Pranab Mukherjee’s election as thePresident of the Indian Republic‚ surfacing of a string of scams dealing severe blow to the credibility
Premium Manmohan Singh India Indian National Congress
author Leo Szilard and cosigned by scientist of the atomic bomb committee to consider the consequences of using the atomic bomb. The organization and structure of the writing brings a strong message about the devastation an atomic bomb would do to any city in the hands of our Army‚ but ultimately by our Commander and Chief who has the power to use it (Szilard). The point the author was trying to convey was the implication and use of the atomic bomb to the president. The scientist wanted the president
Premium Nuclear weapon World War II Atomic bombings of Hiroshima and Nagasaki
Lab Report Lab Report Atomic Dating Using Isotopes Answer the following questions about the results of this activity. Record your answers in the boxes. Send your completed lab report to your instructor. Don’t forget to save your lab report to your computer! Reference: Isotope Half-Life Chart Isotope | Product | Half Life | Carbon-14 | Nitrogen-14 | 5730 years | Potassium - 40 | Argon - 40 | 1‚280 million years | Rubidium - 87 | Strontium -8 7 | 48‚800 million years | Thorium
Premium Isotope
M05_LOBO3944_01_SE_C05.qxd 9/9/09 12:25 PM Page 201 V NATIVE REPRESENTATIONS: MEDIA AND THE ARTS 201 M05_LOBO3944_01_SE_C05.qxd 202 9/9/09 12:25 PM Page 202 NATIVE REPRESENTATIONS: MEDIA AND THE ARTS I n academics‚ the term representations refers to how meaning is constructed in our minds through language; be it words (e.g.‚ writing‚ poetry)‚ music (e.g.‚ traditional‚ modern‚ or rap lyrics)‚ storytelling (e.g.‚ spoken words‚ traditional languages)‚ or visual language (all forms of art
Free Native Americans in the United States Indigenous peoples of the Americas
& 4.2: General properties of aqueous solutions and Precipitation Reactions: 1. (Brown 4.11) When asked what causes electrolyte solutions to conduct electricity‚ a student responds that it is due to the movement of electrons through the solution. Is the student correct? If not‚ what is the correct response? 2. (Brown 4.15) Specify what ions are present in solution upon dissolving each of the following in water: a. ZnCl2 c. (NH4)2SO4 b. HNO3 d. Ca(OH)2 3. (Brown 4.16 ) Specify what
Premium Hydrochloric acid Acetic acid Sulfuric acid
Assignments in Science Class X (Term II) 4 Carbon and its Compounds IMPORTANT NOTES 9. Unsaturated organic compounds : Organic compounds in which a double or a triple bond exists between two carbon atoms in a carbon chain‚ are called unsaturated organic compounds. 10. Hydrocarbons : Organic compounds which contain only carbon and hydrogen atoms are called hydrocarbons. 11. Straight chain hydrocarbons : Hydrocarbons‚ in which all the carbon atoms are linked to one another in a straight chain
Premium Carbon Acetic acid Hydrogen