of Chemistry Spring 2018 Homework 10 6 of 7 Sodium hydrogen carbonat burning sen
ID: 1046717 • Letter: O
Question
of Chemistry Spring 2018 Homework 10 6 of 7 Sodium hydrogen carbonat burning sensation you get in your stomach too much glass of water containing dissolved NaHCO, neutralizes excess HCl through this reaction: e (Na?HCO,), also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the n your stomach when it contains too much hydrochloric acid (HCI), which the stomach secretes to help digest food. Drinking a HCI(aq) + NaHCO3(aq)--NaClaq) + H2O() + CO2(g) The CO2 gas produced is what makes you burp after drinking the solution in the stomach of a man suffering from indigestion can be considered to be 50. mL of a 0.019 M HCI solution. What mass of NaHCO, would he need to ingest to neutralize this much HCI 7 Round your answer to 2 significant digits Worked Example Save For Later Submit AssignExplanation / Answer
1) from equation
1 mol HCl = 1 mol NaHCO3
no of mol of HCl = M*V
= 50*0.019
= 0.95 mmol
no of mol of NaHCO3 = 0.95 mmol
amount of Nahco3 required = n*Mwt = 0.95*10^-3*84
= 0.0798 g
2)
no of mol of FeCl2 = w/Mwt = 1.27/126.75 = 0.01 mol
1 mol fecl2 = 2 mol cl-
no of mol of Cl- = 0.01*2 = 0.02 mol
concentration of Cl- = n/v
= 0.02/50*1000
= 0.4 M
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