The molar solubility of Ag2S in 0.10M NazS is 7 x 10-25 M. 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: This site explains how to find molar mass. from this data. Definitions of molecular mass, molecular weight, molar mass and molar weight. Check out a sample Q&A here. molar mass and molecular weight. Formula: Ag2S. This compound is also known as Silver Sulfide. 2Ag + +S(2-) = AgS 2AgNO3 + Na2S = AgS + 2NaNO3. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Anonymous. Name: Silver Sulfide. F. 1039/c4nr00282b, 6, 10, (5467), (2014). Actually a limiting reactant question. Molar mass of Ag2S = 247.8014 g/mol. Question. 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. Want to see the step-by-step answer? Convert grams Ag2S to moles or moles Ag2S to grams, Molecular weight calculation: A common request on this site is to convert grams to moles. 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. You are comparing AgNO3 and Ag2S. This compound is also known as Silver Sulfide. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. Structure, properties, spectra, suppliers and links for: Silver sulfide. F. CuO Finding molar mass starts with units of grams per mole (g/mol). Finding molar mass starts with units of grams per mole (g/mol). 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. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Image Transcriptionclose. C. Al2O3. 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.) Convert grams Silver Sulfide to moles or moles Silver Sulfide to grams, Molecular weight calculation: so there is a slight difference. Write the compound name for the following formulas and determine the molar mass: A. Ag2S. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. The molar mass {eq}(MM) {/eq} of {eq}Ag_2S {/eq} is 247.8 g/mol. Molar mass of Ag2S = 247.8014 g/mol. We use the most common isotopes. ›› Ag2S molecular weight. Ag2S is a black crystal at room temperature, density 7.23 g/cm 3 , melting point 825 C. It is insoluble in water, but soluble in strong acids, including nitric acid. To complete this calculation, you have to know what substance you are trying to convert. Ag2S example reactions: Browse the list of … Calculate the molecular weight It constitutes the tarnish that forms over time on silverware and other silver objects. 107.8682*2 + 32.065. We use the most common isotopes. Molecular weight calculation: 107.8682*2 + 32.065 ›› Percent composition by element 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. The solubility table below gives the maximum mass of solute in grams that can be dissolved in 100 mL of water at 25°C. This video contains plent The solubility of Ag2S is measured and found to be 7. 7 ⋅ 10⁻¹⁷ = 1. from this data. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. Calculate Ksp for Ag2S. Calculate the molecular weight See Answer. It is useful as a photosensitizer in photography. common chemical compounds. 0 0. Calculate Ksp for Ag2S fullscreen. To complete this calculation, you have to know what substance you are trying to convert. check_circle Expert Answer. Solubility in water, . Molar mass of Ag2S is 247.8014 g/mol Compound name is silver sulfide Convert between Ag2S weight and moles 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 help_outline. 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 reason is that the molar mass of the substance affects the conversion. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). of a chemical compound, More information on common chemical compounds. Browse the list of Silver sulfide is an inorganic compound with the formula Ag 2S. Categories: Inorganic salt. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. of a chemical compound, More information on 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 Ų: 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 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%). The reason is that the molar mass of the substance affects the conversion. 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. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. 0.00301 x 247.79 = 0.7458479 or 0.746 to 3 S.F. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. E. N2S4. Ag is the limiting reagent . More information about Silver sulfide (Ag2S). This site explains how to find molar mass. The solubility table below gives the maximum mass of solute in grams that can be dissolved in 100 mL of water at 25°C. SOT-23. 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.