Question

Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium bicarbonate (c) Mass of sodium bicarbonate used (d) Mass of evaporating dish + watch glass + sodium chloride ium chloride collected (experimental yield) 164.79 165.19 10. 49 165.19 164.7 9 Data Analysis 1) Use your data to determine the experimental mole-to-mole ratio between sodium bicarbonate and sodium chloride. Show your work for each step. • Convert the mass of sodium bicarbonate used to moles. . Convert the mass of sodium chloride collected to moles. Divide both of your results from the preceding two steps by the lower mole value to determine the simplest mole-to-mole ratio between sodium bicarbonate and sodium chloride. Simplest mole ratio before rounding moles NaHCO, : moles Naci Simplest whole number mole ratio after rounding S m oles NaHCO, moles Naci Page 1 of 3

Answer 1

1. Mass UL sodium bicarbonote = 0.49 m) Motor mass of sodium bicarbonate (NaHCO3) = 849mol CM) No. of mole of NO HCO3 = mass of NaHCO3 Molar mass of NaHCO3 n= m = 0.4g. M 849 molt ne 0.00476 mol Moles of NOHCO, -0.00476 mol Cor) 4-T6x10 mol # Calculation with given mass). 2. Mass of sodium chloride (NaCl) = 164-79. Motar mass of Nacl = 58.449mol No. of moles of NaCl = mass of NaCl Molor mass of NOCI n = m = 164-19 M. 58.44gmolt n = 2.82mol Mofes of NaCl = 2.82mol Ratio Smallest Doof moles = moles of NaHCO3 = 0.00476 mol NaHCO2 = 0.00476 mol = 1 0.00476 m of Nach = 2,82 mol = 592.4. 0-00476 mol * Simplest mole Ratio before younding 1 motes NaHCO :1592.4 moles Naci. + Simplest whole number mole ratio apto sounding, Imole Natico 1592 moles Nach

* Sersection to be made in mass of Had according to the res mis e) Mass of Sodium chloride collected = mass of evaporating mass of evaporating dish + watch glass dish + watch + Sodium chlonde glass. 165.19 - 164. Tg. 0.49 Moss of NaCl = 0.49 Motar mass of Mad=V 56.44 g mot! nam = 0.49. 000684 mo. M 58.44 g mol-1 Moles of NaCl = 0-0068 4mol. Ratio Moles of NaHCO3 = 0.00476 Moles of NaCl = 0.00684. NaHCO3 = 0.00476 = 1. 0.00436 NaCl = 0.00684 = 1.44 OOO476 * Simplest mole Ratio before rounding (1 mole/ NaHCO₃ (1.44 mole Nach .. * Siroplest whole number Ratio alfa roundina 11 mole NaHCO₃ : 1 mole Nach