Sep 28, 2007 · let M = molar mass. M(Al2(SO4)3) = 2x26.98 + 3x(32.07 + 4x16.00) = 342.17. and. M(S) = 32.07. but there are 3 moles of S in each mole of Al2(SO4)3. so. 3M(S) = 96.21. then %sulfur = (96.21/342.17)...
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- In this case, Al2 means 2 aluminums, (SO4)3 means 3 (SO4)s. The parentheses mean that the 3 has to be multiplied by whatever number of atoms you have of each element inside: 3x1 sulfurs, 3x4 oxygens. Now for the grand tally: 2 aluminum atoms + 3 sulfur atoms + 12 oxygen atoms = 17 atoms total in each molecule.
- Al2 (SO4) 3 - aluminum sulfate, inorganic substance from the salt class. Found in the form of crystals or white powder, soluble in water. A chemically active substance, it reacts well with many components, therefore it is often used in experiments and problems in chemistry, but to solve them, you need to know the molar mass of Al2 (SO4) 3.
Molar Mass, Molecular Weight and Elemental Composition Calculator. Enter a chemical formula to calculate its molar mass and elemental composition: Molar mass of Al2(SO4)3*K2SO4is 516.4101 g/mol. Convert between Al2(SO4)3*K2SO4 weight and moles. Compound. Moles.
- What mass of sulfur tetrafluoride, SF 4 , has the same number of fluorine atoms as 25.0 g of oxygen difluoride, OF 25.0 g Calculate the mass percent composition of sulfur in Al2(SO4)3.
sodium sulfate: (1) the formula mass and (2) the percentage composition. From the formula mass on page T-9 various mass ratios, that is, conversion factors, may be obtained: 45.98 g Na 142.04 lbs Na 2SO 4 32.06 g S
- Dec 02, 2010 · Percent Composition Calculate the percent composition by mass of these compounds: (a) NaBr (d) SiCl4 (b) KHCO3 (e) Al2(SO4)3 (c) FeCl3 (0 AgNO3 Calculate the percent of iron in the following compounds: (a) FeO (b) Fe203 (c) Fe304 (d) Fe(CN)6 How many molecules are contained in each of the following: (a) 1.75 mol Cl2 (b) 0.27 mol C2H6O (c) 12.0 ...
Mass of oil = 1013.0 g Mass of methanol = 200.0 g Mass of sodium hydroxide = 3.5 g Mass of biodiesel produced = 811.0 g The relative molecular mass of the oil used by the student is 885.6. Calculate the amount (in moles) of the oil and the methanol used, and hence the amount (in moles) of excess methanol.
- This program determines the molecular mass of a substance. Enter the molecular formula of the substance. It will calculate the total mass along with the elemental composition and mass of each element in the compound. Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F.
What is the mass percent of sulfur in Al 2 (SO 4) 3? A. 9.372 % C. 28.12 % B. 21.38 % D. 42.73 % 2. How many grams of phosphorus are in 35.70 ... 8. Consider the following balanced reaction equation. How many grams of sulfur are formed when 22.3 g of dihydrogen sulfide are allowed to react with an excess of sulfur dioxide? 2 H 2 S(g) + SO 2 (g ...
- 2x55.8g 3S 12O 2Fe = = % Fe 2x55.8+3x32.1+12x16.0 g Fe2(SO4)3 Fe2(SO4)3 Fe2(SO4)3 12x16g 2x32.1g = = = = % S % O 399.9g 399.9g Percent Composition and Formulas of Compounds Example 2-10Calculate the percent composition of Fe2(SO4)3 to 3 significant figures. x 100% x 100% = 27.9% x 100% = 24.1% x 100% x 100% x 100% = 48.0%
Calculate x, that is, the number of water molecules associated with each Al2(SO4)3 unit. M(Al) = 26.982 g/mol M(Al2(SO4)3) = 342.15 g/mol M(H2O) = 18.015 g/mol We can find the formula mass of the compound as follows
- To calculate the percent composition, the masses of C, H, and O in a known mass of C 9 H 8 O 4 are needed. It is convenient to consider 1 mol of C 9 H 8 O 4 and use its molar mass (180.159 g/mole, determined from the chemical formula) to calculate the percentages of each of its elements:
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