Sodium chloride Essays

  • Sodium Chloride Lab Report

    953 Words  | 4 Pages

    concentration of Sodium Chloride (NaCl) solution affects the volume of the gases (Oxygen gas and Chlorine gas) at the anode during the electrolysis of sodium chloride solution. In my previous chemistry classes, I have learnt that concentration affects the majority of the gas produced at the anode. This made me wonder, how does the ratio of oxygen gas to chlorine gas produced at the anode vary at the electrodes. This made me formulate the research question: How does the concentration of Sodium Chloride solution

  • Sodium Chloride Mass Solution

    1336 Words  | 6 Pages

    of each solution according to its concentration. Assuming that the density of each solution is approximately 1 g/mL, the mass of each solution will be 600 grams.(mass of solution=volume of solutiondensity of solution) In order to calculate the sodium chloride mass required for each solution use the following formula: mass of solution=mass of NaCl 100concentration of solution. For the solution of NaCl 5% are need 30 g NaCl and 570 mL water; for the solution of NaCl 8% are needed 48 g NaCl and 552 mL

  • Aminotetrazole Monohydrate Reaction Lab Report

    912 Words  | 4 Pages

    5-aminotetrazole monohydrate: In a 250 ml round-bottom flask equipped with a condenser for refluxing (90 °C) and a magnetic stirring bar, 5.00 g (5.95 mmol) dicyandiamide (three times crystallized), 7.47 g (11.9 mmol) sodium azide and 11.00 g (17.8 mmol) boric acid and 100 ml of water is added and allowed to reflux for 24 hours, after the completion of the reaction, until the solution pH to about 2 to 3 as hydrochloric acid 37% is added (about 12 ml) Then the reaction mixture was cooled in a refrigerator

  • Melting Point Experiment

    1257 Words  | 6 Pages

    I. INTRODUCTION This report discusses an experiment, the objective of which was to determine the classification of six known chemicals: sodium nitrate, barium chloride, silicon carbide, naphthalene, urea, and antimony and two unknown chemicals XIa and XIb. Since each type of chemical (ionic, molecular, macromolecular and metallic) has its own set of properties, by testing these properties and finding them out for each chemical, it was possible to classify them. The properties tested during this

  • Bicarbonate Lab Report

    1275 Words  | 6 Pages

    Bicarbonates and Carbonates High levels of bicarbonate in water can increase the concentration of sodium in water, raise soil pH, and have a negative impact on soil permeability. The presence of carbonate can compound the effect of bicarbonate on soil’s pH. Carbonate exists in water with pH levels of 8.0 or higher. To determine the effect of bicarbonate on water, the Residual Sodium Carbonate (RSC) is calculated and expressed as mill-equivalents per liter (meq/L): RSC = (HCO3 + CO3) – (Ca + Mg) An

  • Essay On Enthalpy Change Of Solution

    975 Words  | 4 Pages

    NaCl); others dissolve exothermically (for example NaOH). An infinitely dilute solution is one where there is a sufficiently large excess of water that adding any more doesn't cause any further heat to be absorbed or evolved. So, when 1 mole of sodium chloride crystals are dissolved in an excess of water, the enthalpy change of solution is found to be +3.9 kJ mol-1. The change is slightly endothermic, and so the temperature of the solution will be slightly lower

  • Essay On Soil Salinity

    719 Words  | 3 Pages

    1.1 SOIL SALINITY Soil salinity is defined as the presence of the major dissolved inorganic solutes in the soil liquid phase. It contains soluble and readily soluble salts, some charged species (e.g., Na+, K+, Mg2+, Ca2+, Cl-, HCO3-, NO3-, SO42-, and CO32−), non-ionic solutes and ions that make ion pairs (Corwin, 2005). The primary source of these salts in soil and water is the physical and geochemical weathering such as hydrolysis, hydration, dissolution, oxidation, and carbonation

  • Qualitative Analysis Of Cations Lab Report

    1450 Words  | 6 Pages

    CH 204 - Introduction to Chemical Practice Experiment 2 - Qualitative Analysis of Cations Petra Hsia Stefi Hsia TA: Joey Gurrentz February 8, 2018 RESULTS & DISCUSSION In Part A of the experiment, the presence of silver was confirmed by the "Unknown 4" substance. It was discovered with two rounds of testing. In the first round, two drops of 6M acetic acid and 4 drops of 1M K2CrO4 was added to the "Step 6" test tube, the solution turned a yellow-orange color. Because there was no formation of yellow

  • Organic Acid Lab Report

    933 Words  | 4 Pages

    DESCRIPTION  A simple reaction, followed by isolation of the desired product from the solution, will illustrate a typical application of extraction.  Some organic acids are liquid and are soluble in water as indicated. The sodium salts of these acids are ionic compounds that are also very soluble in water. If an aqueous solution of one such salt is acidified with a strong mineral acid, the much weaker organic acid is produced.  The weak organic acid is largely un-ionized in the aqueous solution

  • Advantages Of Demineralization

    1047 Words  | 5 Pages

    Before the water reach to the consumer 70% of the permeate water goes to potabilization or remineralization while 30% goes the demineralization. In potabilization plant four chemicals are added which are: Sodium hypochlorite It is added for final disinfection of treated water Sodium fluoride This chemical must be existed in the potable water because when it dissociate fluoride is produced as shown in the chemical reaction: NaF → 〖Na〗^++ F^- The fluoride used to protect the teeth in two ways:

  • Disadvantages Of Fishbone Diagram

    879 Words  | 4 Pages

    Fishbone diagram is also known as Ishikawa diagram which is created by Japanese Quality Guru named Dr. Kaoru Ishikawa. It looks like a “fish skeleton” and not involving statistics. It maps out a process or problem, makes improvement easier and pictorial representation of all possible causes contributing to a problem. In manufacturing areas, the fishbone diagram is grouped into few major categories which are 6M’s. They are Man, Material, Method, Machine, Measurement and Mother Nature or Environment

  • Gellan Gum Lab Report

    1674 Words  | 7 Pages

    MATERIALS Gellan Gum was procured from Sigma (USA), Calcium Chloride dihydrate and CuSO4, 5H2O are supplied by Merck, India. All other reagents were of analytical grade. INSTRUMENTS Photo calorimeter (EI Digital photo colorimeter), mechanical shaker (Uptin 2MLH Magnetic Stirrer), pH meter (Toshiba, India) EXPERIMENTAL Preparation of new biomaterial hydrogel 1. 10 ml distilled water is measured by micropipette and poured in a small beaker. 2. Gellan gum (100mg) is effectively weighed. 3. The measured

  • Covalent Compounds Lab

    902 Words  | 4 Pages

    Properties of Ionic and Covalent Substances Lab Report Introduction The purpose of this lab was to determine which of the following substances: wax, sugar, and salt, are an ionic compound and which are a covalent compound. In order to accurately digest the experiments results, research of definitions of each relating led to the following information: ionic compounds are positive and negatively charged ions that experience attraction to each other and pull together in a cluster

  • Hydrate Formula

    1087 Words  | 5 Pages

    Finding the Formula of a Hydrate – Lab Report (DCP, CE) Introduction and Overview: A hydrate is a chemical that has water molecules loosely bonded to it. The water molecules are not actually part of the formula, so the formula is written slightly differently. An example would be CaSO4 . 3H2O. This chemical would be called calcium sulfate trihydrate. When finding the mass of this chemical, you find the mass of the calcium sulfate and then add 3 times the mass of water to it. (40.08 + 32.066

  • Nano-Silica Case Study

    1748 Words  | 7 Pages

    In this paper, a method for modifying hydrophilic nano-silica using water soluble SDS and silane coupling agents was studied. Since SDS dissolves in water, the mixing of nano-silica in SDS gives a better dispersion and it modifies the surface of nano-silica well. By subsequent analysis, the SDS concentration as well as the dispersion time and temperature have been optimized. The optimum concentration of SDS was identified as 1 wt%. The temperature was controlled at 50±2°C and a dispersion time of

  • Sprinkler Pipe Degrades

    919 Words  | 4 Pages

    Abbreviations 1. Chlorinated Polyvinyl Chloride - CPVC 2. National Fire Protection Association – NFPA Introduction The National Fire Protection Association (NFPA) lists four materials that can be used for fire sprinkler piping:- • Steel • Copper • Polybutylene • Chlorinated Polyvinyl Chloride (CPVC) For this report only steel and CPVC is considered. Steel versus CPVC pipes How a fire sprinkler pipe degrades, both under long- term ambient conditions and when exposed to a fire, is an important consideration

  • The Importance Of Laboratory Safety

    1135 Words  | 5 Pages

    Laboratory safety is of paramount importance. That’s exactly why this safety resource has been created, to encourage and promote safe and efficient working practices in any lab. Many laboratory guidelines are written based on experience – notably when things have gone badly wrong. Remember, you could be dealing with extremely dangerous and hazardous chemicals, so caution is required at all times. Whilst many laboratories are governed by their own rules and regulations, much of the safety precautions

  • Analysis Of Yeast Growth In YPD Agar

    1307 Words  | 6 Pages

    Yeast Growth in YPD Agar: To prepare YPD agar, mentioned in Table 1 nutrient ingredients in given concentration were weighed and added to 200 ml of distilled water. The mixture was autoclaved (SMS ASL80 MSV) for 1.5 hours at 121°C. On sterile plates, 25-30 ml of the mixture was poured and left to cool down. The yeast cells were then streaked on the agar plates and the cultures were grown in a stationary incubator (S1-600R, Lab Companion) for 72 hours at 30°C. Yeast Growth in YPD: To prepare YPD liquid

  • Catalytic Reduction Of P-Nitrophenol Lab Report

    1444 Words  | 6 Pages

    Catalytic reduction of p-nitrophenol As a model reaction, we selected the reduction of 4-NP by NaBH4 to 4-AP. The reduction was followed with the aqueous solution in a standard quartz cell with a 1cm path length. The reaction process was as follows: 1.5 mL of 0.15 mM 4-NP was mixed with 1.0 mL of 0.02 M NaBH4 in the cell for UV-Vis measurements. Immediately, the colour change was observed from light yellow to deep yellow. 0.5 mL of AuNPs solution was added to the above mixture. The UV-Vis spectra

  • Dissolution Lab Report

    940 Words  | 4 Pages

    aspirin dissolves in water. Second, sodium and citrate ions combine to form sodium citrate which is soluble in the water. Third and finally, the bicarbonate ions from sodium bicarbonate react with hydrogen ions from citric acid to produce water and carbon dioxide gas which is released in bubbles. The result is a fizzy, or effervescent, solution. Bubbles are produced continuously from the time the tablet enters the water until the time when the reaction between sodium bicarbonate and citric acid ceases