Equations: NaOH(aq) + HCl(aq) rightarrow NaCl + H2O(l) Used Na2CO(aq) + HCl(aq)
ID: 629335 • Letter: E
Question
Equations: NaOH(aq) + HCl(aq) rightarrow NaCl + H2O(l) Used Na2CO(aq) + HCl(aq) rightarrow NaCl(aq) + CO2(g) + H2O(l) Na2O(aq) + HGl(aq) rightarrow NaCl(aq) + H2O(g) Mass of crucible 19.00 Initial mass of crucible baking god a 24.00 Final mass of crucible and solid product 23.70 Mass of solid 1g concentration of HCl 1M Volume of HCl to reach the end point 26.3ML Mass of Eveluation flask and NaCl 0.384 Test 1 - Titration You used 1.00 g of solid and it required 1.000 mL of 1.00 M HCI to titrate to the endpoint . Determine the number of moles of HCI required in your titration. Assuming the mole ratio between the solid and the HCI is 1:1., determine the molar mass of the solid. Assuming the mole ratio between the solid and the HCI is 1:2, respectively, determine the molar mass of the solid. We can evaluate the three possible products by comparing the percent errors of the experimentally determined molar masses, we will compare the magnitude (absolute value) of the percent errors, so do not worry about the sign. Assuming you produced NaOH, what is the percent error in your determined molar mass of NaOH? Assuming you produced Na2CO3, what is the percent error in your determined molar mass of Na2CO3? Assuming you produced Na2Of what is the percent error in your determined molar mass of Na2O? Using your results, which of the following equations best describes the thermal decomposition of baking soda? NaHCO3(s) rightarrow NaOH(s) -+- CO2(g) 2NaHCO3(s) - Na2CO3(s) + CO2(s) + H2O(g) 2NaHCO3(s) rightarrow Na2O(s) + 2CO2(g) + H2O(g) With these data, at least two of the above are possible.Explanation / Answer
http://www.webchem.net/notes/Periodicity/titration_calcs.htm
http://www.docbrown.info/page06/Mtestsnotes/ExtraVolCalcs1.htm
use this link to get your answer
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.