Question

Find the molarity of acid and base and identify the element T in TOH if 25cm cubic of 64g solution of metal hydroxide (TOH) dissolved in 250cm cubic to make solution then it was neutralized with a solution made by dissolving 36.5g in 0.5 HCL. Given the average volume of acid used is 20.00cm cubic

Answer 1

First, we need to determine the number of moles of HCl used to neutralize the TOH:

Moles of HCl = concentration x volume
Moles of HCl = 0.5 mol/L x 0.02 L
Moles of HCl = 0.01 mol

Since TOH is a hydroxide, it reacts with HCl in a 1:1 ratio:

TOH + HCl -> TCl + H2O

Therefore, the number of moles of TOH in the solution is also 0.01 mol.

From the given information, we can determine the molar mass of TOH:

Molar mass of TOH = 64 g/25 cm^3
Molar mass of TOH = 2.56 g/cm^3

Using the molar mass and the number of moles of TOH, we can calculate its molarity:

Molarity of TOH = moles of TOH / volume of solution
Molarity of TOH = 0.01 mol / 0.25 L
Molarity of TOH = 0.04 mol/L

Since TOH contains an unknown metal element T, we cannot determine its identity from the given information.