25 ml of a solution of barium hydroxide on titration with 0.1 molar solution of hydrochlroric acid gave a titre value of 35 ml . The molarity of sodium hydroxide is ?

Answer 1

You mean the molarity of the parent #"barium hydroxide"# solution........

We assess the following stoichiometric equation:

#Ba(OH)_2 + 2HCl(aq) rarr BaCl_2(aq) + 2H_2O(l)#.

And thus 2 equiv acid are required to neutralize each equiv barium hydroxide.

Now, #"concentration"="moles of solute"/"volume of solution"#, i.e. #C=n/V#, there were #0.1*mol*L^-1xx0.035*L=3.5xx10^-3*mol# WITH RESPECT to hydrochloric acid.......

And, thus, by the given stoichiometry, there was an initial concentration of .......

#(3.5xx10^-3*molxx1/2)/(0.025*L)=0.070*mol*L^-1# with respect to the PARENT #Ba(OH)_2# solution. And I would like you to check on the solubilities of barium hydroxide to see if the question actually drew from experimental data.
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Answer 2

The molarity of the barium hydroxide solution can be calculated using the following formula:

M1V1 = M2V2

Where: M1 = Molarity of barium hydroxide solution V1 = Volume of barium hydroxide solution used (25 mL = 0.025 L) M2 = Molarity of hydrochloric acid solution (0.1 M) V2 = Volume of hydrochloric acid solution used (35 mL = 0.035 L)

Plugging in the values:

M1 * 0.025 = 0.1 * 0.035

M1 = (0.1 * 0.035) / 0.025

M1 = 0.14 / 0.025

M1 = 5.6 M

So, the molarity of the barium hydroxide solution is 5.6 M.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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