Final answer:
To determine the molar mass of the unknown monoprotic acid, you can use the information from a titration involving a known acid. By following the steps outlined in the answer, you will be able to calculate the molar mass of the acid.
Step-by-step explanation:
To determine the molar mass of the unknown monoprotic acid, we can use the information from a titration involving a known acid. In this case, we have a titration between NaOH and HCl. By using the balanced chemical equation for the reaction, the volume and concentration of NaOH used, and the volume of HCl being titrated, we can calculate the molarity of HCl. Then, knowing the mass of the acid and the number of moles of acid, we can find the molar mass. Let's work through the steps:
1. Calculate the molarity of HCl:
Number of moles of NaOH = volume of NaOH (in L) × concentration of NaOH
Number of moles of HCl = 2 × number of moles of NaOH (according to balanced equation)
Molarity of HCl = Number of moles of HCl / volume of HCl (in L)
2. Calculate the number of moles of the unknown acid:
Moles of HCl = Molarity of HCl × volume of HCl (in L)
Moles of acid = Moles of HCl / number of proton equivalents (for monoprotic acid, it is 1)
3. Calculate the molar mass of the acid:
Molar mass = Mass of acid / moles of acid
By following these steps and using the given information, you can determine the molar mass of the unknown acid.