The reaction of hydrochloric acid and sodium hydroxide is a very rapid and exothermic reaction. The equation is: HCl(aq) + NaOH(aq)→NaCl(aq) + H2O(l)   In one experiment, a student placed 50.0 mL of 1.125 M HCl at 25.5º C (density = 1.02 g/mL) in acoffee cup calorimeter. To this, the student added 50.0 mL of 1.225 M NaOH also at 25.5º C (density = 1.04 g/mL). The mixture was stirred, and the temperature quickly increased to a maximum of 32.2º C.   a. Determine the limiting reactant. b. Calculate the mass of the solution once the HCl (aq) and NaOH (aq) are mixed.

Question
The reaction of hydrochloric acid and sodium hydroxide is a very rapid and exothermic reaction.
The equation is: HCl(aq) + NaOH(aq)→NaCl(aq) + H2O(l)
 
In one experiment, a student placed 50.0 mL of 1.125 M HCl at 25.5º C (density = 1.02 g/mL) in acoffee cup calorimeter. To this, the student added 50.0 mL of 1.225 M NaOH also at 25.5º C (density = 1.04 g/mL). The mixture was stirred, and the temperature quickly increased to a maximum of 32.2º C.
 
a. Determine the limiting reactant.
b. Calculate the mass of the solution once the HCl (aq) and NaOH (aq) are mixed.

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