1 Answer anor277 May 1, 2018 Approx. Answer: 1 question Calculate the mass of 6.9 moles of nitrous acid (hno2). what mass of sodium nitrite, nano2, should be added to it to make a buffer with a ph of 2.96 - 9520310 Massa molar of HNO2(aq) is 47.01344 ± 0.00087 g/mol Convert between HNO2(aq) weight and moles Ka= 4.5 x 10(to the -4 power) The pH of weak acid solution can be given by using the relation Query Solve===== got 47.013g/mol for the molar mass of HNO2. Std. InChIKey. Nitrous acid (molecular formula H N O 2) is a weak and monoprotic acid known only in solution, in the gas phase and in the form of nitrite (NO − 2) salts. Ka (HNO2) = 4.0 × 10–4. In the gas phase molecules of HNO2 are covalently bonded. InChI=1S/HNO2/c2-1-3 /h(H,2,3) Copy. I do not know how to do this. Table of Acids with Ka and pKa Values* CLAS * Compiled from Appendix 5 Chem 1A, B, C Lab Manual and Zumdahl 6th Ed. IOVCWXUNBOPUCH-UHFFFAOYSA-N Copy. The resulting diazonium salts are reagents in azo coupling reactions to give azo dyes How many moles of nitrous acid, HNO2, are required initially to prepare 2.5 liters of a solution of pH = 3.00? It is usually prepared by acidifying a solution of one of its The reactions of nitrogen dioxide with cyclohexene have been studied as a model for the reactions that occur between nitrogen dioxide in smoggy air and unsaturated fatty acids in pulmonary lipids. I solve the … A 1.00 L solution contains 19.52 g of nitrous acid, HNO2. I also, got 184.11g/mol. - the answers to estudyassistant.com Nitrous acid HNO2 cannot be isolated as a pure compound. i have to use the molar masses i got to find the number of molecules of 6.5gHNO2 and 22.1 g MgBr2. It is useful in chemistry in converting amines into diazonium compounds, which are used in making azo dyes. What mass of sodium nitrite, NaNO2, should be added to it to make a buffer with a pH of 2.56? 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