Mass of evaporating dish and solid product Mass of evaporating dish and watch gl
ID: 1005257 • Letter: M
Question
Mass of evaporating dish and solid product Mass of evaporating dish and watch glass Mass of solid product Formula weight of solid product Theoretical yield in grams (calculated from equation) Percent yield According to the balanced equation, what is the molar ratio between sodium hydrogen carbonate and hydrochloric acid? If you started with 24 g sodium hydrogen carbonate and 100 ml of 6 M HCI: How many moles of sodium hydrogen carbonate would you have? How many liters of HCI would you have? How many moles of HCI would you have (M = moles/liter)? What is the limiting reagent? How many moles of NaCI would be produced?Explanation / Answer
The reaction that will be going to take place
NaHCO + HCl NaCl + CO + HO
a) Molar mass of sodium hydrogen carbonate (NaHCO3)
=> 23 + 1 + 12 + 3 * 16
=> 84 gm/mol
number of moles of NaHCO3 = 24/84 = 0.2857 moles
b) Number of liters of HCl would you have = 100ml/1000mL = 0.1 L
c) Moles of HCl = Molarity of HCl * Volume of HCl (in L)
=> 0.6 moles
d) Hence NaHCO3 is the limiting reagent in the reaction
e) Moles of NaCl produced = Moles of NaHCO3 = 0.2857 moles