Why is the ionic compound NaCl (table salt) able to dissolve in a glass of the molecular compound water ({eq}H_2O {/eq})? Log in. , Dr. Howard Fields, 1 Comment, January 5, 2018 Salt’s ions and sugar’s polar bonds are both attracted to the polar water molecules. This preview shows page 5 - 9 out of 10 pages.. Get an easy, free answer to your question in Top Homework Answers. Salt dissolves in water. Salt is hygroscopic, meaning it absorbs water from the air. Everything can dissolve in water because water is considered a universal solvent. -CH2 HỌC-CH2 O b. Which is immiscible with water? Salt's ions and sugar's polar bonds are both attracted to the polar water molecules. So, when salt crystals are placed in water, the positive end of the water molecule attracts the negatively charged chloride ions and the negative ends of the water molecules attract the positive sodium ions. I'm surprised, and I just found a scientific article that tells about this. There is enough space between the large water molecules to easily fit small particles of salt or sugar. Saltwater corrodes metal five times faster than fresh water does and the salty, humid ocean air causes metal to corrode 10 times faster than air with normal humidity. This combination corrodes, or eats away at, the metal, weakening it and causing it to fall apart. Beyond the saturation point, excess salt will not dissolve; it will remain visible as grains of salt. Why? Calcium silicate absorbs moisture from the air better than salt, and does not dissolve in the water … Discussion: Salt would dissolve quicker in hot water because the molecules in hot water move faster than cold water because of the higher energy, therefore the molecules of hot water move fast, they can more easily break apart the other molecules of a different substance when they come into contact. This is why sugar dissolves in water, where as oil does not. However, non-polar solutes such as oil, carbon tetrachloride etc will be insoluble in water, and so form a separate layer when added to it. To explain this, we'll describe the process that occurs when table salt (sodium chloride) dissolves in water. Warm water has more room between the water molecules, allowing more salt to fit. 9050 users searched for this homework answer last month and 49 are doing it now, let’s get your homework done. water can form covalent linkages with salt molecules. , No Comment, January 2, 2018 Watch an overview of Lesson 5.3 featuring an experiment to see whether salt dissolves better in water or alcohol. , Dr. Howard Fields, No Comment. It possesses partial positive charges on hydrogen atoms and partial negative charges on oxygen atoms. Although common table salt easily dissolves in water, not all ionic salts do. Join now. table salt dissolves in water because it is composed of sodium plus and chlorine minus ions which the water can easily surround. These patterns form the basis for the rules outlined in the table below, which can guide predictions of whether a given salt will dissolve in water. The sugar molecules break up easily and do not reform again after the water molecules pull them away from each other like magnets do to iron fillings. It will, however, slightly dissolve in "rubbing alcohol" (which contains water) and many alcoholic beverages that are mostly water. , Dr. Howard Fields 1. If you keep adding more and more salt, eventually you will reach a point at which no more of the salt will dissolve, no matter how long or how vigorously you stir it. Chloride ions in salt are negatively charged, while the sodium ions carry a positive charge. Salt When we use the word 'salt', we are generally referring to sodium chloride (NaCl), which is what we use to season our food. Discussion: Salt would dissolve quicker in hot water because the molecules in hot water move faster than cold water because of the higher energy, therefore the molecules of hot water move fast, they can more easily break apart the other molecules of a different substance when they come into contact. Table salt (the iodine isn't important) consists of much smaller particles than rock salt and therefore has a much higher ratio of surface area to mass. Answer (1 of 8): Casey SerinIf you want to know why sugar dissolves in water before salt, one of the best things for you to do can be to perform an experiment. As for why, it's because of the relationship between volume and surface area: Say each grain of salt is a perfect square with all sides equal. May 2, 2010 D) water is polar and salt is nonpolar. Table salt, or sodium chloride (NaCl), the most common ionic compound, is soluble in water (360 g/L). Table salt \(\left( \ce{NaCl} \right)\) readily dissolves in water. Yes- this is because tap water is largely already unsaturated, making the sugar easier to dissolve. Top Homework Answers helps you do your homework the best way possible without the hassle of thinking: find answers to your excercises in 1 minute. - 862430 1. Sand and flour are examples of insoluble substances. Salt’s ions and sugar’s polar bonds are both attracted to the polar water molecules. Discussion: Salt would dissolve quicker in hot water because the molecules in hot water move faster than cold water because of the higher energy, therefore the molecules of hot water move fast, they can more easily break apart the other molecules of a different substance when they come into contact. I'm going to read it now! 14. It is a hydrophobic substance. When NaCl is dropped into water, it dissociates into two ions: Na+ and Cl-. Thank you for your question! Explain why salt dissolves in water so easily. Neutral Charge Neutral Charge Positive Charge Charge Neutral Charge Positive Charge Sodium chloride (NaCl) dissolves when water molecules continuously attack the NaCl crystal, pulling away the individual sodium (Na +) and chloride (Cl –) ions.This nonstop attack continuous until the whole NaCl crystal disintegrates. Join now. Why it is not easy to dissolve table salt in hexane and toluene in water? But not with so much ice undissolved that it changes the strength of the saline in the water - Finding the space in the fridge and the right containers. Well, a chemical change involves a chemical reaction, with new substances produced as a result of the change.A physical change, on the other hand, results in a change of the material's appearance, but no new chemical products result. The negative part of NaCl is attracted by the positive part of the water molecule. The negative part of NaCl is attracted by the positive part of the water molecule. This distribution of charges makes water attract oppositely charged ions towards its polar atoms. Why Do Some Solids Dissolve in Water? To explain this, we'll describe the process that occurs when table salt (sodium chloride) dissolves in water. Salt dissolves in water as it carries a net electric charge that can make its charged ions be attracted by the oppositely charged ions of the water. Add your answer and earn points. Since chemical reactions occur at surfaces,the smaller table salt particles will dissolve far more quickly than the larger rock salt. Similarly, there is also an attraction between the positively charged part of water molecules (hydrogen) and … Sodium chloride, a common salt, dissolves in water due to the attraction between the negative part of the water (oxygen) and the positive part of the salt (sodium). amramujeeb7862003 amramujeeb7862003 salt in water, the solute is salt, and solvent is water. Choose a salt. The salt dissolves and the water becomes salty. Thus, it will dissolve polar solutes like salt, sugar etc, i.e. The chloride is stabilized in the same way by the partially charges hydrogen side of the waters. Learn how your comment data is processed. All Rights Reserved. ★★★ Correct answer to the question: Why can ionic table salt and covalent rubbing alcohol both dissolve in water? pamelacaler9261 pamelacaler9261 30.08.2017 Chemistry Junior High School Why salt dissolve easily in water? For a substance to dissolve in water, it must also be a polar molecule, or it must be capable of breaking into polar molecules. No. If you have more homework to do you can use the search bar to find the answer to other homework: 150 have done it today and 52 in the last hour. Salt dissolves in water as it carries a net electric charge that can make its charged ions be attracted by the oppositely charged ions of the water. Please examine the picture below. These free ions in a salt-water solution allow electricity to flow through water. Similarly, the positive part of NaCl is attracted by the negative part of the water molecule. Everything can dissolve in water because water is considered a universal solvent. This water dissolves the salt, and the resulting salt water combines with the remaining salt, cementing the grains together into a solid mass. For a substance to dissolve in water, it must also be a polar molecule, or it must be capable of breaking into polar molecules. We all know from our chemistry classes that ionic compounds dissolve easily in water. Sodium Chloride: Sodium Chloride (NaCl) is also known as table salt. Table salt dissolves in water because the very polar water molecules attract both the positively charged sodium ions and the negatively charged chloride ions. Salt dissolves in water up to a point when the solution becomes saturated (38 grams of salt per 100 grams of room temperature water). 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