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In an experiment, to determine the percentage purity of the hydrochloric acid, 25cm3 of the acid solution made by dissolving 25.5g of impure acid in a liter of solution was found to neutralize 25cm3 of 0.4M NaOH solution. Calculate a. Concentration of the acid in (i) g/dm3 (ii) mol/dm3 b. percentage purity of the acid c. percentage impurity of the acid d. What mass of impurities contained in 25.5g?
Most Upvoted Answer
In an experiment, to determine the percentage purity of the hydrochlor...
normality*volume=normality*volume
molarity*volume = molarity*volume
25*x = 10
x=10/25
moles of hcl = 0.4
weight = 16.4 g

percentage purity = 16.4/25*100
=65.6
ii)concentration of acid = molarity * molar mass
concentration of acid = 0.0164 g/ml
iii) 0.0004 mol / ml
iv)percentage impurity = 34.4
#hope this answer satisfies your question
Community Answer
In an experiment, to determine the percentage purity of the hydrochlor...

Concentration of the Acid:

(i) g/dm3:
- Number of moles of NaOH = Volume of NaOH solution (in dm3) * Molarity of NaOH
- Number of moles of HCl = Number of moles of NaOH (as they react in a 1:1 ratio)
- Mass of HCl in 25cm3 of solution = Number of moles of HCl * Molar mass of HCl
- Concentration of the acid = Mass of HCl / Volume of solution
- Calculate the concentration in g/dm3.

(ii) mol/dm3:
- Volume of acid solution used = 25cm3 = 0.025 dm3
- Concentration of HCl in mol/dm3 = Number of moles of HCl / Volume of acid solution

Percentage Purity of the Acid:
- Calculate the theoretical concentration of the acid solution (using the volume and molarity of NaOH used in the titration)
- Calculate the actual concentration of the acid solution (using the volume of acid solution and the number of moles of HCl)
- Percentage purity = (Actual concentration / Theoretical concentration) * 100

Percentage Impurity of the Acid:
- Percentage impurity = 100% - Percentage purity

Mass of Impurities:
- Mass of impurities = Total mass of impure acid - Mass of pure acid

This detailed calculation will help you determine the concentration of the acid, its purity, impurity, and the mass of impurities present in the given sample of acid solution.
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In an experiment, to determine the percentage purity of the hydrochloric acid, 25cm3 of the acid solution made by dissolving 25.5g of impure acid in a liter of solution was found to neutralize 25cm3 of 0.4M NaOH solution. Calculate a. Concentration of the acid in (i) g/dm3 (ii) mol/dm3 b. percentage purity of the acid c. percentage impurity of the acid d. What mass of impurities contained in 25.5g?
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In an experiment, to determine the percentage purity of the hydrochloric acid, 25cm3 of the acid solution made by dissolving 25.5g of impure acid in a liter of solution was found to neutralize 25cm3 of 0.4M NaOH solution. Calculate a. Concentration of the acid in (i) g/dm3 (ii) mol/dm3 b. percentage purity of the acid c. percentage impurity of the acid d. What mass of impurities contained in 25.5g? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about In an experiment, to determine the percentage purity of the hydrochloric acid, 25cm3 of the acid solution made by dissolving 25.5g of impure acid in a liter of solution was found to neutralize 25cm3 of 0.4M NaOH solution. Calculate a. Concentration of the acid in (i) g/dm3 (ii) mol/dm3 b. percentage purity of the acid c. percentage impurity of the acid d. What mass of impurities contained in 25.5g? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an experiment, to determine the percentage purity of the hydrochloric acid, 25cm3 of the acid solution made by dissolving 25.5g of impure acid in a liter of solution was found to neutralize 25cm3 of 0.4M NaOH solution. Calculate a. Concentration of the acid in (i) g/dm3 (ii) mol/dm3 b. percentage purity of the acid c. percentage impurity of the acid d. What mass of impurities contained in 25.5g?.
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