The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. The molarity of HNO3 in a sample which has density 1.4 g/mL and mass percentage of 63% is _____. (Molecular Weight of HNO3 = 63) Dividing the grams of HNO 3 by the molecular weight of HNO 3 (63.01 g/mole) gives the number of moles of HNO 3 / L or Molarity, which is 15.7 M. What is the Molarity Calculator Equation (Molarity Conversion) The following equation is used for calculating Molarity where the concentration is given in wt %: The molecular mass of this non volatile solute is View Answer Log in. Ask your question. Log in. As a monoprotic acid its equivalent weight is 63, i.e., equal to the molecular weight. Answered Calculate the molecular or mass of the hno3 2 Its melting point is -42 ̊C (-43.6 ̊F), boiling point 83 ̊C (181.4 ̊F), density 1.513 g/cm3. Most commercially available nitric acid has a concentration of 68% in water. HNO3 is an acid and an oxidising agent. HNO3 = 63.01284 g/mol Find an answer to your question Calculate the molecular or mass of the hno3 1. 16 + 14 + 1 = 63 g/mol The molecular mass of HNO3 = the atomic mass of H+ the atomic mass of N +3 x the atomic mass of O =1+14+48 =63u N = 1 X 14 = 14. smart6377 smart6377 29.11.2019 Chemistry Secondary School +13 pts. Join now. Join now. H = 1 X 1 = 1. O = 16 X 3 = 48. We need to consider the number of atoms of each element in the formula and then multiply each with the atomic mass . Oxygen = 15.9994 * 3 = 47.9982. As an oxidising agent its equivalent weight depends on the product. 1. Nitric acid (H NO 3), also known as aqua fortis (Latin for "strong water") and spirit of niter, is a highly corrosive mineral acid.. Nitrogen = 14.0067 * 1 = 14.0067. Element - Atomic Mass - # of Atoms. A solution containing 10g per d/m of urea( molecular mass=60g/mol) is isotonic with a 5%solution of non volatile solute. Molar mass of the following substances are as follows: (a) Ethyne, C2H2 Molar mass of ethyne, C2H2 = 2 x 12 + 2 x 1 = 26 g (b) Sulphur molecule, S8 Molar mass of sulphur molecule, S8 = 8 x 32 = 256 g (c) Phosphorus molecule, P4 (atomic mass of phosphorus = 31) Molar mass of phosphorus molecule, P4 = 4 x 31 = 124 g (d) Hydrochloric acid, HCl Molar mass of hydrochloric acid, HCl = 1 + 35.5 = 36.5 g Hydrogen = 1.00794 * 1 = 1.00794. what is the molecular mass of HNO3 ?? To find the molar mass of nitric acid HNO3. Kathie Lee Gifford on moment Bill Cosby tried to kiss her Ask your question. Nitric Acid HNO3 Molar Mass, Molecular Weight. HNO3 is a colorless fuming liquid at room temperature. In HNO3 there are 1 H atom,1 N atom and 3 O atoms. Weight is 63, i.e., equal to the molecular weight of each in. The product of nitric acid has a concentration of 68 % in water % in water of nitrogen and.! Atomic mass -43.6 ̊F ), density 1.513 g/cm3 of hno3? melting... 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