Hydrogen sulfide is the chemical compound with the formula H 2S. By taking the ratio of the mass and volume, we arrive with the density. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. • Pb(OH)2 + Hg2S = PbS + Hg2(OH)2 of a chemical compound, More information on {/eq}. Molar mass of H2S is 34.0809 g/mol Compound name is hydrogen sulfide Convert between H2S weight and moles {eq}\rm \rho = \dfrac{PMW}{RT} \\ We use the most common isotopes. Check the chart for more details. It is possible to use the ideal gas equal to determine the molar mass or density of a gas. Our experts can answer your tough homework and study questions. H2S is a colorless gas at room temperature. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. Calculate the molecular weight For the density, we can manipulate the expression below to arrive with the density in grams per liter. Molecular weight calculation: 1.00794*2 + 32.065 ›› Percent composition by element \rho = \dfrac{(1~atm)(34\frac{g}{mol})}{(0.0821\frac{L-atm}{mol-K})(273~K)} Hydrosulfuric Acid H2S Molar Mass, Molecular Weight. - Definition, Formula & Examples, CLEP Natural Sciences: Study Guide & Test Prep, Middle School Life Science: Tutoring Solution, Holt McDougal Modern Chemistry: Online Textbook Help, Praxis Chemistry (5245): Practice & Study Guide, College Chemistry: Homework Help Resource, CSET Science Subtest II Chemistry (218): Practice & Study Guide, ISEB Common Entrance Exam at 13+ Geography: Study Guide & Test Prep, Holt Science Spectrum - Physical Science with Earth and Space Science: Online Textbook Help, Biological and Biomedical 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 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. ›› H2S molecular weight. To do so, we must manipulate the values in the expression to arrive with an equation that contains the desired value. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. All rights reserved. {/eq}. These relative weights computed from the chemical equation are sometimes called equation weights. It is poisonous, corrosive, and flammable. A common request on this site is to convert grams to moles. Assume the absolute zero apparatus is initially... 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The reason is that the molar mass of the substance affects the conversion. What is the density of hydrogen sulfide gas, {eq}H_2S The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Convert grams H2S to moles  or  moles H2S to grams, Molecular weight calculation: All other trademarks and copyrights are the property of their respective owners. Sciences, Culinary Arts and Personal Convert grams H2S to moles or moles H2S to grams. Services, Working Scholars® Bringing Tuition-Free College to the Community. Its melting point is -82 ̊C (-115.6 ̊F), boiling point -60 ̊C (-76 ̊F), density 0.00136 g/cm3. The necessary values to arrive with the density of hydrogen sulfide gas are: By plugging in these values to the equation below, we arrive with the density of hydrogen sulfide gas. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. To complete this calculation, you have to know what substance you are trying to convert. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. © copyright 2003-2020 Study.com. Earn Transferable Credit & Get your Degree, Get access to this video and our entire Q&A library. This compound is also known as Hydrogen Sulfide. Do a quick conversion: 1 moles H2S = 34.08088 gram using the molecular weight calculator and the molar mass of H2S. This compound is also known as Hydrogen Sulfide. This site explains how to find molar mass. Finding molar mass starts with units of grams per mole (g/mol). Molar Mass = 34 grams per mole R = 0.0821 L-atm per mol-K By plugging in these values to the equation below, we arrive with the density of hydrogen sulfide gas. Browse the list of Molar mass of H2S = 34.08088 g/mol. molar mass and molecular weight. {/eq}, at STP? 1.00794*2 + 32.065. It is a colorless chalcogen hydride gas with the characteristic foul odor of rotten eggs. Therefore, the density of hydrogen sulfide gas at STP is: {eq}\boxed{ \; \rm \rho = 1.52\dfrac{g}{L} \; } The moles of a gas is the ratio of the mass in grams and the molar mass represented by MW. Under the same conditions of temperature and... An expandable cylinder has its top connected to a... 1. First acid dissociation constant of hydrogen sulfide is about 1x10-7 molar so that in body fluids dissociated and undissociated hydrogen sulfide exist in about equal proportions. 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. Undissociated acid, however, penetrates biological membranes more rapidly than the hydrosulfide anion. Mercury(I) Sulfide Hg2S Molar Mass, Molecular Weight. common chemical compounds. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages.


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