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First solve the brackets, then multiplications and at last do the final addition. Always follow the calculation order to avoid any mistakes in calculation.
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But all these units (i.e g/mol, grams/mole and g/mole) are the same.
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I hope you have understood the short and simple calculation for finding the molar mass of NaNO3. Hence the Molar mass of NaNO3 is 84.994 g/mol. Question: QUESTION 1 AgNO3(aq) + KClaq) KNO3(aq) + AgCl(s) Given the above reaction equation, if 0.50 moles of AgNO3 (molar mass 170.0 grams mole) and 0.25 moles of KCl (molar mass 74.6 grams/mole) react together to form AgCl, how much excess reagent is left over (in grams) 74.6 grams 85.0 grams 18.7 grams 42.5 grams QUESTION 2 AgNO3. So, Molar mass of NaNO3 = Molar mass of 1 Sodium (Na) atom + Molar mass of 1 Nitrogen (N) atom + Molar mass of 3 Oxygen (O) atoms. You can see that in NaNO3, there is 1 Sodium atom, 1 Nitrogen atom and 3 Oxygen atoms. Please let us know how we can improve this web app.Now, to calculate the molar mass of NaNO3, you just have to add the molar mass of all the individual atoms that are present in NaNO3. Related: Molecular weights of amino acids Weights of atoms and isotopes are from NIST article. Molar mass ( molar weight) is the mass of one mole of a substance and is expressed in g/mol.I think you got mixed up and used AgNO3 instead, but the question is asking for the mass of AgCl. In doing so, the answer will be 1.72 g AgCl. 3 AgNO3 + K3PO4 -> Ag3PO4 + 3 KNO3 What mass, in grams, of Ag3PO4 is produced when 19 g of K3PO4 is consumed a) 46.8 b) 15 c) 37.5 d) 18.7 e) 112. In order to get the mass of AgCl, you have to multiply the produced moles of AgCl, which is 0.012 moles, with the molar mass of AgCl, which is 143.32 g/mol. (1 u is equal to 1/12 the mass of one atom of carbon-12) CHEMISTRY Stoichiometry Practice Mole-Mass Multiple Choice: Show your set-up in the space provided and circle the answer of your choice. Molecular mass ( molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u).To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.Įxamples of molecular weight computations:ĭefinitions of molecular mass, molecular weight, molar mass and molar weight Molar mass of Na2SO3 is AgNO3 g/mol Molar mass of Re is 186.207 g/mol Molar mass of Na2SO3 is 2(AgNO3) g/mol Molar mass of CHCl is 48.47164 g/mol Molar mass of (Na2SO3)2(AgNO3) is 421.95857712 g/mol Molar mass of (Na2SO3)(AgNO3)2 is 465.78893856 g/mol Molar mass of is 126.04273856 g/mol Molar mass of Na2s2o3 is 158. Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa.Ĭomputing molecular weight (molecular mass) Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg.Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al. Computing molar mass (molar weight)To calculate molar mass of a chemical compound enter its formula and click 'Compute'.