How many #"mL"# of #1.25%# (by mass) #"HCl"# would be required to neutralize #"215 mL"# of #"325 mEq/L"# #"Ba"("OH")_2#?
Assume all solutions have a density of 1.08 g/mL.
Note: My issue is understanding how to apply equivalents (unit Eq) to acids and bases. With singular elements/molecules, I understand, but not compounds.
Assume all solutions have a density of 1.08 g/mL.
Note: My issue is understanding how to apply equivalents (unit Eq) to acids and bases. With singular elements/molecules, I understand, but not compounds.
Since we used equivalents, we don't need to worry about mol ratios here, but had we used mols instead, we would.
This number of mols can be contained in any volume of solution, but we specify that the concentration available is:
(the solution volume is exact, being a definition of percent, so it has infinite sig figs.)
I would treat the numerator and denominator separately:
NUMERATOR
DENOMINATOR
Therefore, the solution molarity is:
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To determine the volume of 1.25% (by mass) HCl needed to neutralize 215 mL of 325 mEq/L Ba(OH)2, we use the equation:
[ \text{Volume}_1 \times \text{Concentration}_1 = \text{Volume}_2 \times \text{Concentration}_2 ]
[ \text{Volume}_1 \times 1.25% = 215 \text{ mL} \times 325 \text{ mEq/L} ]
[ \text{Volume}_1 = \frac{215 \times 325}{1.25%} ]
[ \text{Volume}_1 ≈ 55928 \text{ mL} ]
So, approximately 55928 mL of 1.25% HCl would be required to neutralize 215 mL of 325 mEq/L Ba(OH)2.
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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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