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This would yield 2 x 0.157 moles of Ag= 0.313 moles of Ag and 0.157 moles of S. Mass = number of moles X molar mass Calculate the molecular weight Solubility in water, . common chemical compounds. 0.255 g O2 / 32.00 g/mole O2 = 0.00796875 moles of O2 x 2/1 molar ratio Ag2S/O2 = 0.0159375 moles of O2. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The molar solubility of Ag2S in 0.10M NazS is 7 x 10-25 M. from this data. This compound is also known as Silver Sulfide. Categories: Inorganic salt. F. 1039/c4nr00282b, 6, 10, (5467), (2014). This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. More information about Silver sulfide (Ag2S). When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. Finding molar mass starts with units of grams per mole (g/mol). Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Silver sulfide is a network solid made up of silver (electronegativity of 1.98) and sulfur (electronegativity of 2.58) where the bonds have low ionic character (approximately 10%). If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The molar mass {eq}(MM) {/eq} of {eq}Ag_2S {/eq} is 247.8 g/mol. Anonymous. The solubility table below gives the maximum mass of solute in grams that can be dissolved in 100 mL of water at 25°C. 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. help_outline. Molar mass of Ag2S = 247.8014 g/mol. Want to see the step-by-step answer? The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. We use the most common isotopes. 10 years ago. Solution for The molar solubility of Ag2S is 1. Browse the list of so there is a slight difference. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. Ag is the limiting reagent . Molar Mass (Ag2S) = 2 x 107.9 + 32.1 = 247.9 g. Number of moles (n) = Mass of sample / Molar Mass = 38.8 / 247.9 = 0.157 moles. To find more Silver sulfide information like chemical properties, structure, melting point, boiling point, density, molecular formula, molecular weight, physical properties and toxicity information. A common request on this site is to convert grams to moles. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. Ag2S example reactions: Convert grams Silver Sulfide to moles or moles Silver Sulfide to grams. ›› Ag2S molecular weight. 0.747 g to 3 S.F. The molar solubility of Ag2S in 0.10M NazS is 7 x 10-25 M. from this data. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. It constitutes the tarnish that forms over time on silverware and other silver objects. The Molar Mass of Ag2S = 2 x (Molar Mass of Ag) + 1 x Molar Mass of S. From the periodic table this is Molar Mass (Ag2S) = 2 x 107.9 + 32.1 = 247.9 g Number of moles (n) = Mass … Solution for The molar solubility of Ag2S is 1. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. A dense black solid, it is the only sulfide of silver. It is useful as a photosensitizer in photography. of a chemical compound, More information on The reason is that the molar mass of the substance affects the conversion. These relative weights computed from the chemical equation are sometimes called equation weights. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. Exact Mass: 248.78974 g/mol: Computed by PubChem 2.1 (PubChem release 2019.06.18) Monoisotopic Mass: 246.79008 g/mol: Computed by PubChem 2.1 (PubChem release 2019.06.18) Topological Polar Surface Area: 1 Å²: Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18) Heavy Atom Count: 3: Computed by PubChem: Formal Charge: 0: Computed by PubChem: Complexity: 2.8 2 AgNO3 + H2S → Ag2S + 2 HNO3 (0.25 mol Ag2S) x (2/1) x (169.8732 g/mol) = 85 g AgNO3 (The molecular mass of Ag2S (247.7g/mol) doesn't enter into the calculation because the number of moles of Ag2S is already known because it's given.) Browse the list of We use the most common isotopes. of a chemical compound, More information on Question. Convert grams Ag2S to moles or moles Ag2S to grams, Molecular weight calculation: B. FeCl3. Formula: Ag2S. We were taught to never round until the end or you could compromise accuracy. See Answer. Write the compound name for the following formulas and determine the molar mass: A. Ag2S. A common request on this site is to convert grams to moles. 0.00301 x 247.79 = 0.7458479 or 0.746 to 3 S.F. The reason is that the molar mass of the substance affects the conversion. Image Transcriptionclose. Check out a sample Q&A here. … 357.49 g/mol. To complete this calculation, you have to know what substance you are trying to convert. Convert grams Ag2S to moles or moles Ag2S to grams. from this data. So, the number of mol {eq}(N) {/eq} of {eq}Ag_2S {/eq} present in 125 g of mass {eq}(M) {/eq} is calculated as shown below: 107.8682*2 + 32.065. Calculate Ksp for Ag2S. Calculations: Formula: Ag2s Molar Mass: 247.796 g/mol 1g=4.03557765258519E-03 mol Percent composition (by mass): Element Count Atom Mass %(by mass) The Molar Mass of Ag2S = 2 x (Molar Mass of Ag) + 1 x Molar Mass of S. From the periodic table this is. Molar Mass: 247.8014. 0.0030128859 moles of Ag2S x 247.79 g/mole Ag2S = 0.7465629972 g Ag2S. Finding molar mass starts with units of grams per mole (g/mol). The solubility table below gives the maximum mass of solute in grams that can be dissolved in 100 mL of water at 25°C.

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