each mole of NaOH neutralizes one mole of HNO3.
I assume your volumes are in cm^3 (not cm), but I can't figure out what the question is. The molarity will tell you how many moles of NaOH you have. The volume of HNO3 will tell you the molarity needed.
Just off the cuff, since 24/25 as much HNO3 is needed, it will have to be 25/24 the concentration of the NaOH.
I think. If I have divined correctly just what you are saying ...
A is a solution of trioxonitrate nitrate (v) (HNO3) of unknown concentration, B is a standard solutions of NAOH containing 4.00g/dm3 of solutions 25.0cm potion of solutions B required an average of 24.00cm of solutions A for complete neutralization
2 answers
Two comments:
1. I think the question must be to determine the concentration of the HNO3.
The NaOH is 4 g/dm^3 (4 g/L), the molar mass of NaOH is 40; therefore, the molarity, M, of the NaOH is 4/40 mols/L or 0.1 M.
Then mols NaOH = M x L = 0.1 x 25/1000 = 0.0025 (soln B)
mols HNO3 (see rationale from oobleck) = 0.0025
Then M HNO3 (soln A) = mols/L = 0.0025/0.024 = 0.104 but watch the significant figures.
2. Where in the world did you come up with an absurd name like trioxonitrate nitrate(v). There is no such animal and this is NOT an IUPAC approved name for nitric acid. Other names like trioxonitrate(v) acid are not correct either. No matter how you slice it, the correct name for HNO3 is nitric acid. I thought the old "Stock" system was a good one and it was a good one when used to clarify naming; however, when the IUPAC adopted that for the ONLY way to name chemical compounds they started this ridiculous naming system. Na2SO4 is sodium sulfate, and not disodium tetraoxosulfate(VI). Bah Humbug.
1. I think the question must be to determine the concentration of the HNO3.
The NaOH is 4 g/dm^3 (4 g/L), the molar mass of NaOH is 40; therefore, the molarity, M, of the NaOH is 4/40 mols/L or 0.1 M.
Then mols NaOH = M x L = 0.1 x 25/1000 = 0.0025 (soln B)
mols HNO3 (see rationale from oobleck) = 0.0025
Then M HNO3 (soln A) = mols/L = 0.0025/0.024 = 0.104 but watch the significant figures.
2. Where in the world did you come up with an absurd name like trioxonitrate nitrate(v). There is no such animal and this is NOT an IUPAC approved name for nitric acid. Other names like trioxonitrate(v) acid are not correct either. No matter how you slice it, the correct name for HNO3 is nitric acid. I thought the old "Stock" system was a good one and it was a good one when used to clarify naming; however, when the IUPAC adopted that for the ONLY way to name chemical compounds they started this ridiculous naming system. Na2SO4 is sodium sulfate, and not disodium tetraoxosulfate(VI). Bah Humbug.
9 answers