Introduction: Problem: What are some of the properties of ionic compounds? Summary: Ionic compounds are everywhere. They can be found just about anywhere on Earth. Even the average human body is mostly made up of nonionic compounds. An ionic compound is a chemical compound that is made up of ions that are held together by ionic bonding, which are electrostatic forces. An example includes sodium fluoride, sodium chloride, sodium bromide, etc. Nonionic compounds are substances that are made up of atoms, held together by covalent bonds. In this experiment, the independent variable make up the test substances, and the dependent variable consists of the observation, melting point, and conductivity. Hypothesis: If substances are tested and …show more content…
Explain what forces must be overcome for a substance to melt. In order for a substance to melt, it will have to overcome the intermolecular bonds that are holding it together, and for it to do that it will have to absorb enough energy. Describe what is necessary for a substance to be a conductor of electricity. In order for a substance to be a conductor of electricity it is necessary that the substance consist of electrons that are able to move around in the substance. Read the entire laboratory activity. Form a hypothesis as to whether distilled water is a conductor of electricity. Based of this laboratory activity I believe that if distilled water is tested and experimented, then it will show not be a conductor of electricity. Define and give an example of an electrolyte. Electrolyte is a chemical compound that conducts electricity by changing into ions when either melted or dissolved into a solution. Sodium Chloride is an example of an electrolyte. Procedure: Safety: Protect your eyes and keep safety goggles on throughout the entire experiment Use crucible tongs to transfer ALL hot material Be careful when handling heating …show more content…
I would describe Sodium Chloride as hard and very brittle. Sodium chloride and iron (III) chloride are typical ionic compounds, while sugar represents a typical nonionic compound. In general, how do these two types of compounds compare in their melting points? The ionic compound, sodium chloride and iron(lll) chloride, would have a higher melting point compared to the nonionic compound, sugar, which would have a smaller boiling point compared to the ionic compounds. In Part C, why was it important to use distilled water instead of tap water for the conductivity measurement? It is important to use distilled water rather than tap water because, distilled water has no ions, meaning that it is not conductive. Also, tap water consists of water, minerals, dirt and etc. The amount relies on the rate of how fast it goes from tap to tap. So when wanting accurate conductivity measurements you need to make sure that their is accurate and knowledgeable water being used, so that’s why you use distilled water. Analysis
Develop a hypothesis on the ability of your filtration technique to remove contaminants. Hypothesis = For this dirty water can be treated it will then be clean and drinkable water 2. Based on the results of your experiment, would you reject or accept the hypothesis that you produced in question 1? Explain how you determined this.
A covalent compound: it is a molecule formed by covalent bonds in which atoms share one or more pairs of valence electrons. Properties of Covalent compounds: • Hard • Good insulators • Transparent • Poor conductors of heat and electricity (specially in water) • Tend to be gases, liquids or soft
Covalent bond is a bond formed by two electrons sharing there electrons. Ionic bond has a mixture of two dangerous elements sodium and chlorine, but when they are both combined
For example, NaCl and KBr are both electrolytes that are salts. Another example is HF, which is a weak acid electrolyte. There are many different chemical reactions in sports. Electrolytes are very important, but the most important chemical reaction in the sports world is
A battery can be made with anything that has electrolyte activity. Electricity is a class of science which occurs due to the interaction of charges. To simplify the definition, electricity is simply the flow of electrons. Before electricity can be understood, the makeup atoms has to be understood. A nucleus is the dense centre of an atom.
Ions produced from substances that are broken down in water are called electrolytes. This solution can conduct electricity by the movement of cations and anions. (http://www.science.uwaterloo.ca/~cchieh/cact/c120/electrolyte.html). This electrically conductive solution is crucial to the wellbeing of a person’s body fluids. This helps with life functions along with other things.
Electrical conductivity (EC, mS.cm-1) were measured by Coductometer (YSI Model 35 yellow spring, OH, USA).
12.1 p1 What is an electrolyte? When dissolved in water, salts usually disperse into the components for example, NaCl dissolved in water would give us Na+ and Cl- which are known as ions. Once the ions are in the water the solution as a whole will conduct electricity and is known as an electrolyte solution and the individual ions that have been dissolved from the salt are known as electrolytes. What are they used for?
An example of this bond would be Sodium Chloride or (NaCl). Ionic bonds are high polarity, no definite shape, high melting points, occurs between two nonmetals, and are solid in room temperature. A covalent bond is when two atoms share electron, a great example for this type of bond would be (CH4 ) or also Hydro Chloric acid (HCI). Covalent bonds are liquids
There are three types of chemical bonds: Ionic, Covalent, and Polar covalent. Elements with low electro negativity usually form Ionic bonds, such as salt (NaCl) and usually one element gives up an entire shell to give to the other element. Elements with similar negativity form Covalent
There are many types of bonds in the element family. There are Chemical Bonds, Ionic Bonds, Covalent Bonds, Polar Covalent Bond, and the Hydrogen Bond. But the 3 major chemical bonds are the Covalent Bonds, Ionic Bonds, and the Polar Covalent bonds. When something is ionic, it means that it has an electrically charged atom because of its loss or gain of 1 or more electrons. Like salt for example.
Type 1: metal vs metal Example: Explain why Mg has a higher melting point than Na. Reason: Compare the number of delocalized electrons. Type 2: ionic compound vs ionic compound Example: Explain why NaF has a higher melting point than NaCl.
P1 Predict the products that form when solution of electrolysed and molten electrolytes are electrolysed Electrolysis Chemical change which is produced by passing an electric current through a conducting solution or molten salt Electrolyte A substance which is able to ionizes ad conduct electricity In order to predict the product of the electrolysis but before we do that we need to know what it is and how does it work. Electrolysis, it is a method to separate bonded elements and compounds by passing an electric current through them. Electrolyte is a substance which contains free ions, which are carriers of electric current in the electrolyte however, if the ions are not transportable as it is in a solid salt, then electrolysis cannot
Before any calculations, all the conductance data were baseline corrected with the conductance of pure water at each temperature. To
Electrolytes are minerals found in liquids that carry either a negative or positive charge. This allows them to conduct electricity and move electrical currents throughout its mass. (Morris) “[Electrolytes allow cells to] generate energy, maintain the stability of their walls, and to function in general.” (Wedro) Heart, muscle, and nerve cells use electrolytes to maintain and carry the electrical current/impulses across their membranes. (Nordqvist)