It is an inorganic sodium salt and a chlorite salt. The equivalent weight of kcl is equal to its molecular weight. The equivalent weight of an acid or base for neutralization reactions or of any other compound that acts by double decomposition is the quantity of the compound that will furnish or react with or be equivalent to 1. How to calculate the equivalent weight or nfactor of.
Sample salt and sodium calculation for example, here is how to calculate the amount of sodium in 3 grams g of salt. Add water to the flask to bring the final level to one liter after. What is the equivalent weight of nacl, alcl3, and al2so4 4. Like many mnii species, these salts are pink, with the paleness of the color being characteristic of transition metal complexes with high spin d. Molecular weights and moles calculations for pharmacy students. It is determined by the relationship between elements in a compound. The valence refers to how many hydrogen atoms could bond with the compound. Calcium chloride dihydrate calcium chloride hexahydrate calcium disodium edetate. This salt, also known as sodium chloride, is made of sodium and chlorine. While half the salt molecule is sodium, its not half by weight. Sodium chloride appears as a white crystalline solid. This means that if the equivalent weight of na is 23 gram and the equivalent weight of cl is 35.
What is the meaning of equivalent weight and its formula. This new report, the sixth in a series of reports presenting dietary reference values for the intakes of nutrients by. Further, calcium chloride is a white colored powder with hygroscopic properties whereas, sodium chloride is a colorless crystal and the pure sodium chloride is not hygroscopic. The dermal absorption was reported on alcide, an antimicrobial compound consisting of solutions of sodium chlorite and lactic acid, which when mixed immediately before use result in the formation of chlorine dioxide. Calculate the molecular weight of a chemical compound. Sodium chlorite appears as a white crystalline solid. The key difference between calcium chloride and sodium chloride is that calcium chloride molecule has two chlorine atoms whereas sodium chloride molecule has one chlorine atom.
Sodium chloride equivalent is calculated by converting the sodium content in a food. It is an essential electrolyte located in all body fluids responsible for. Difference between calcium chloride and sodium chloride. One of the most widely used method is the sodium chloride equivalent method. The rest comes from other forms of sodium like baking soda, which is the common name for sodium bicarbonate that show up in our food. Sodium chlorite is an inorganic sodium salt in which chlorite is the counterion. More information on molar mass and molecular weight. How to calculate a chloride equivalent for the total. The reason salt isnt just half sodium and half chlorine is because a sodium ion and a chlorine ion dont weight the same amount. The molecular weight of sodium chloride, nacl, is 22. Dietary reference intakes for water, potassium, sodium. This sodium hydroxide solution can be used to measure the equivalent. Chemically salt is sodium chloride which is made up of one molecule of sodium plus one molecule of chloride. The equivalent weight of a substance is the mass of the substance which will supply a standard number of positive or negative electrical charges when dissolved.
What is the milligram equivalent weight of sodium sulfate. To convert mmol to mg of sodium, chloride, or sodium chloride, multiply mmol by 23, 35. This document shows how to calculate a chloride cl equivalent for the total chlorine. The stoichiometrically equivalent masses of the reactants in a chemical reactions are gramequivalent. About 90% of the sodium we eat is in the form of sodium chloride. Definitions of equivalent weight acidbase context the weight of a compound that contains one equivalent of a proton for acid or one equivalent of an hydroxide for base examples. The mass of the substance in question and the molar mass or molecular weight of that substance. To calculate a milliequivalent meq you have to have two pieces of information. Sodium chloride revision date 17apr2019 component casno weight % sodium chloride 7647145 95 4. In case of sodium thiosulfate the reation proceeds as under. Disample solution is not more intense than that from the lute as required to obtain nlt 3 solutions at concentra standard solution nmt 2ppm. For example, one equivalent weight of sodium 23 reacts with one equivalent of chloride 35. Name formula molecular weight equivalent weight aluminum sulfate al 2so 4 3 18h 2o 666. Equivalent weight is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance.
And the answer is that equivalent weight are additive quantity. What is the equivalent weight of sodium thiosulfate. Atomic weight of sodium na is 23 and that of chlorine cl is 35. What is the equivalent weight of potassium chloride answers. Sodium chloride nacl or clna cid 5234 structure, chemical names. Step 1 find the molecular weight of sodium chloride.
Therefore, in order to determine the estimate of a sufficient amount of sodium chloride that is needed to adjust the tonicity so the end preparation is isotonicisoosmotic requires the sodium chloride equivalent of. Therefore, about 60 percent of the population should get no more than 1,500 milligrams of sodium per day to prevent cardiovascular disease. The equivalent weight of an element is the mass which combines with or displaces 1. The equivalent per million epm is determined by dividing the concentration in ppm of a substance by its equivalent weight. Pharmaceutical calculation chapter 11 isotonic and buffer. Mobility will likely be mobile in the environment due to its water solubility. Sodium is linked to blood pressure and volume, and too much sodium can cause high blood pressure, or hypertension.
Bioaccumulation accumulationno information available. Dailymed dextrose and sodium chloride injection, solution. So you cant just halve the weight of salt to find your sodium intake. Mass is the amount of matter in something, while weight is the gravitational pull on a mass. For example the formula weight of anhydrous calcium chloride caci2 is about 111 grams.
The molar mass of sodium chloride is the sum between the atomic weight of sodium and chlorine. You must also be able to identify its valence from its molecular formula, as this determines ion number in solution. Sodium chloride equivalent of ephedrine sulphate is 0. The weight percent of sodium hypochlorite is the weight of the sodium hypochlorite per 100 parts of solution. Convert grams sodium chloride to moles or moles sodium chloride to grams. What is equivalent weight of sodium chloride answers. Find the molecular weight of a compound used in a chemical reaction by looking up on the periodic table the molecular weight of each element and multiplying it by the number of the element in the compound before adding all molecular weights together. Sodium chloride revision date 17apr2019 sodium chloride not listed pimephals prome. So 6 g of salt equates to 2400 milligrams of sodium.
Commercial grade usually contains some chlorides of calcium and magnesium which absorb moisture and cause caking. Skin contact wash off immediately with plenty of water for at least 15 minutes. Human drugs fda approved drug products with therapeutic equivalence. How to calculate the equivalent weight or nfactor of compound.
The concepts of equivalent weight and gram equivalents help link the concept of molar ratios to the fact that different elements have different molecular weights. Theoretical equivalent weight of sulfuric acid h 2 so 4 49. If an agent other than sodium chloride, such as boric acid, dextrose, or potassium nitrate, is to be used to make a solution isotonic, divide the amount of sodium chloride step 3 by. Equivalent weight, in chemistry, the quantity of a substance that exactly reacts with, or is. Dietary reference intakes for water, potassium, sodium, chloride, and sulfate the dietary reference intakes dris are quantitative estimates of nutrient intakes to be used for planning and assessing diets for healthy people.
For example, the molecular weight of sodium chloride, nacl, is 22. By weight, table salt is approximately 40% sodium and 60% chloride. Equivalent weightgram formula massvalency molecular weight 58. The equivalent weight is the gram molecular weight divided by the number of electrons lost or gained by each molecule. Difficult to burn, but accelerates the burning of organic substances. The weight equivalent is the gram molecular weight divided by the number of electrons lost or obtained by each molecule. In chemistry equivalent weight refers to the mass of a.
Iv flow rate calculations are required when setting top 15 pharmacy textbooks every serious pharmacy student should own. Equivalent weight also known as gram equivalent is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance. Firstaid measures eye contact rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. This inorganic chemical exists in the anhydrous form, as well as the dihydrate mncl 2 2h 2 o and tetrahydrate mncl 2 4h 2 o, with the tetrahydrate being the most common form. Weight gain aside, a highsodium diet poses serious health risks for some individuals.
In this lesson, we will learn how to determine the. It is an inorganic chloride and an inorganic sodium salt. In chemistry, there are different ways to express the weights of different compounds. Manganeseii chloride is the dichloride salt of manganese, mncl 2. The weight of salt is usually a combination of 40 percent sodium and 60 percent chloride. Sodium chloride specification comparison sigmaaldrich. It is used in expressing combining powers of elements.
Several methods are used to adjust isotonicity of pharmaceutical solutions. Salt meter data book sodium chloride equivalent value atago. The molecular mass of potassium chloride kcl is 74,55. We use proportional sets to calculate the equivalent quantity of iron in ferrous. Body fluids are often described as having an osmotic pressure equivalent to 0. Calculate the molar mass of sodium chloride in grams per mole or search for a chemical formula or substance. It can be calculated by converting the weight percent of available chlorine into its equivalent as sodium hypochlorite by multiplying the ratio of their respective molecular weights. Chloride salts such as sodium chloride are often very soluble in water.
245 467 1035 1058 1542 1370 1433 690 665 1034 814 1487 1183 669 1086 263 906 322 538 87 64 99 652 236 1357 918 113 306 1118 1050 1233 1159 1323 746 1047