's' : ''}}. If you forgot your password, you can reset it. An ion is an atom or molecule that has a charge because it has too many or too few electrons. study Filters are used to control the grain size. Ions are either monatomic (consisting of one atom) polyatomic (consisting of more than one atom). Now we can multiply the quantity of each element by its molar mass on the periodic table. To unlock this lesson you must be a Study.com Member. Services. Molar mass is the mass of one mole of a substance. We use the most common isotopes. 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All ionic compounds have to be electrically neutral, so we have to put the aluminum and sulfate ions together in the correct ratio so their electrical charges cancel. Log in or sign up to add this lesson to a Custom Course. The reaction produces a hydrate of aluminum sulfate. The production of aluminum sulfate involves the reaction of aluminum hydroxide, sulfuric acid and water. Producing aluminum sulfate requires two steps. Tech and Engineering - Questions & Answers, Health and Medicine - Questions & Answers. A hydrate is a compound that has water molecules physically attached to it. In this case, our substance is aluminum sulfate, so we are going to determine the mass of one mole of it. • Molar mass of Al 2 (SO 4) 3: The ­atomic masses are (from the periodic table): Al = 26.98 g/mol . Aluminum forms a +3 ion, Al+3, and sulfate is the -2, polyatomic ion, (SO4)-2. In this case, our substance is aluminum sulfate, so we are going to determine the mass of one mole of it. 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Powered aluminum sulfate is used in the paper and pulp industry because it makes it easier for ink to mark paper. Calculate the molecular weight Molar mass of Al2(SO4)3 = 342.150876 g/mol, Convert grams Aluminium Sulfate to moles  or  moles Aluminium Sulfate to grams, Molecular weight calculation: Anhydrous aluminum sulfate is a white crystalline solid. It is estimated that each person needs around 5 gallons of clean water per day. The molar mass of aluminum sulfate is 342.150876 g/mol. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. Aluminum sulfate is also obtained as an 18-hydrate Al2(SO4)3.18H2O.Both forms are soluble in water, noncombustible, and nontoxic.The primary hazard is the threat to the environment. Log in here for access. Notice we reversed the sign on the sulfate ion. Many of the most common ionic compounds have a positive ion consisting of one metal atom and a negative ion that's polyatomic. Study.com has thousands of articles about every 26.981538*2 + (32.065 + 15.9994*4)*3. It also aids in increasing its durability. Aluminum sulfate is an ionic compound, which is a combination of positive and negative ions. There is a trick to determine that ratio; it's called ''the criss-cross'' method. Aluminum hydroxide (a base) is mixed with sulfuric acid (an acid) and water producing a hydrate of aluminum sulfate. The first step is the chemical reaction creating the compound, and the second step is making the solid into different size grains. Multiplying the quantity of each element by its molar mass, and then adding it all together will give us the molar mass of aluminum sulfate. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. Let's see how it works. All rights reserved. You can view video lessons to learn Mole Concept. Molecular weight calculation: 26.981538*2 + (32.065 + 15.9994*4)*3 ›› Percent composition by element Working Scholars® Bringing Tuition-Free College to the Community. He has taught high school chemistry and physics for 14 years. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems. Password must contain at least one uppercase letter, a number and a special character.

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