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How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends?
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How many grams of concentrated nitric acid solution should be used to ...
Calculation of Concentrated Nitric Acid Solution
To prepare 250ml of 2.0 (M) HNO3, we need to calculate the amount of concentrated nitric acid solution required.
Step 1: Calculate the number of moles of HNO3 required
Molarity = Number of moles/Volume (in L)
2.0 (M) = Number of moles/0.25 L
Number of moles = 0.5 mol
Step 2: Calculate the mass of HNO3 required
Mass of HNO3 = Number of moles x Molar mass of HNO3
= 0.5 mol x 63 g/mol
= 31.5 g
Step 3: Calculate the volume of concentrated nitric acid solution required
The concentrated nitric acid is 70% HNO3, which means that 100 g of the solution contains 70 g of HNO3.
Let x be the volume of concentrated nitric acid solution required.
Mass of HNO3 in x ml of concentrated nitric acid solution = (70/100) x
Mass of HNO3 required = 31.5 g
(70/100) x = 31.5 g
x = (31.5 g x 100)/70
x = 45 g
Therefore, the amount of concentrated nitric acid solution required to prepare 250ml of 2.0 (M) HNO3 is 45g.
Answer: (b) 45g
To prepare 250ml of 2.0 (M) HNO3, we need to calculate the amount of concentrated nitric acid solution required.
Step 1: Calculate the number of moles of HNO3 required
Molarity = Number of moles/Volume (in L)
2.0 (M) = Number of moles/0.25 L
Number of moles = 0.5 mol
Step 2: Calculate the mass of HNO3 required
Mass of HNO3 = Number of moles x Molar mass of HNO3
= 0.5 mol x 63 g/mol
= 31.5 g
Step 3: Calculate the volume of concentrated nitric acid solution required
The concentrated nitric acid is 70% HNO3, which means that 100 g of the solution contains 70 g of HNO3.
Let x be the volume of concentrated nitric acid solution required.
Mass of HNO3 in x ml of concentrated nitric acid solution = (70/100) x
Mass of HNO3 required = 31.5 g
(70/100) x = 31.5 g
x = (31.5 g x 100)/70
x = 45 g
Therefore, the amount of concentrated nitric acid solution required to prepare 250ml of 2.0 (M) HNO3 is 45g.
Answer: (b) 45g
Community Answer
How many grams of concentrated nitric acid solution should be used to ...
Shayak ans is (b)45gm....2=(70*x*1000)/(100*250*63)where, x=required wt of HNO3...by solving x , we get x=45gm.....
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How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends?
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How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends?.
How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many grams of concentrated nitric acid solution should be used to prepare 250ml of 2.0 (M) HNO3 (the concentrated acid is 70% HNO3) a. 54g b. 45g c. 90g d. 70g. please explain it friends?.
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