Astudent titrates a 25 ml of an unknown concentration of hcl with 35 ml of a 0.890 m solution of koh to reach the equivalence point. what is the ph of the hcl solution? a) 1.2 b) -0.10 c) 0.10

Hello!

The chemical equation for the neutralization of HCl with KOH is the following:

HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)

To calculate the concentration of the unknown solution, we can apply the following equation for the equivalence point:

So, the concentration of the HCl solution is 1,246 M

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number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

the atomic mass is the bottom number on the element.

-steel jelly