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. so there is a slight difference. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. You are comparing AgNO3 and Ag2S. help_outline. A common request on this site is to convert grams to moles. Categories: Inorganic salt. Calculate Ksp for Ag2S. F. 1039/c4nr00282b, 6, 10, (5467), (2014). 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. common chemical compounds. 357.49 g/mol. Actually a limiting reactant question. SOT-23. Finding molar mass starts with units of grams per mole (g/mol). 0.747 g to 3 S.F. This compound is also known as Silver Sulfide. from this data. molar mass and molecular weight. Anonymous. This site explains how to find molar mass. Molar Mass: 247.8014. check_circle Expert Answer. Molar mass of Ag2S = 247.8014 g/mol. To find more Silver sulfide information like chemical properties, structure, melting point, boiling point, density, molecular formula, molecular weight, physical properties and toxicity information. Calculate Ksp for Ag2S fullscreen. Convert grams Silver Sulfide to moles or moles Silver Sulfide to grams. 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. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. This video contains plent The solubility of Ag2S is measured and found to be 7. 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. We were taught to never round until the end or you could compromise accuracy. We use the most common isotopes. Write the compound name for the following formulas and determine the molar mass: A. 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) 10 years ago. To complete this calculation, you have to know what substance you are trying to convert. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. 0 0. E. N2S4. Convert grams Silver Sulfide to moles  or  moles Silver Sulfide to grams, Molecular weight calculation: These relative weights computed from the chemical equation are sometimes called equation weights. D. Fe3(PO4)2. 0.0030128859 moles of Ag2S x 247.79 g/mole Ag2S = 0.7465629972 g Ag2S. Ag2S example reactions: molar mass and molecular weight. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. This site explains how to find molar mass. The reason is that the molar mass of the substance affects the conversion. Calculate the molecular weight 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. Image Transcriptionclose. The solubility table below gives the maximum mass of solute in grams that can be dissolved in 100 mL of water at 25°C. These relative weights computed from the chemical equation are sometimes called equation weights. Solution for The molar solubility of Ag2S is 1. A common request on this site is to convert grams to moles. 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. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. You need the molar masses of both and their … 7 ⋅ 10⁻¹⁷ = 1. The molar mass {eq}(MM) {/eq} of {eq}Ag_2S {/eq} is 247.8 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. 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. common chemical compounds. Browse the list of Check out a sample Q&A here. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. 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: … For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. Browse the list of 107.8682*2 + 32.065. Ag is the limiting reagent . This compound is also known as Silver Sulfide. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. Definitions of molecular mass, molecular weight, molar mass and molar weight. The reason is that the molar mass of the substance affects the conversion.

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