5 Calculations Caeulate thr nunher of 1min of Ila that you started with. 000 mL

Question

5 Calculations Caeulate thr nunher of 1min of Ila that you started with. 000 mL 0oo 5 moles Hc h Calculate the moles of NaOH Used in the titrations (using the average volume of the 2 titrations). 8 mdles 1L lo.com NoaH x m HCl Same M NaGH ans we 0000& c. Write the reaction of the ncutralization of the acid HCl by the base NaOH. Using that equation detcrmine how many moles of HCl were neutralized by the NaOH. (The moles of HCl neutralized by NaOH are the excess moles HCl left after reactions with the Tums tablet)

Explanation / Answer

c)

moles of HCl = 0.005

moles of NaOH = 0.00008 mol

HCl   (aq)   +    NaOH (aq)    -------------->   NaCl (aq) + H2O (l)

here from the balanced equation :

moles of HCl = moles of NaOH .

moles of HCl neutralized = 0.00008 mol

d)

moles of HCl neutalized by antacid = moles of HCl - moles of NaOH

                                                       = 0.005 - 0.00008

                                                     = 0.00492 mol

e)

moles = 0.00492 mol

Molarity = 0.16 M

moles = molarity x volume

0.00492 = 0.16 x volume

volume of stomach acid = 0.03075 L

                                     = 30.75 mL

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