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How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?
- a)7.32 g
- b)3.8 g
- c)5g
- d)0.5 g
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)...
Solution:
Given:
Volume of NaOH solution = 250 mL
Molarity of NaOH solution = 0.5 M
To find:
Mass of NaOH present in the solution
Formula:
Molarity (M) = Number of moles (n) / Volume in liters (V)
Number of moles (n) = Molarity (M) x Volume in liters (V)
Conversion:
1 L = 1000 mL
1 mole of NaOH = 40 g
Calculation:
Step 1: Convert the volume from mL to L
250 mL = 250/1000 L = 0.25 L
Step 2: Calculate the number of moles of NaOH
Number of moles (n) = Molarity (M) x Volume in liters (V)
Number of moles (n) = 0.5 M x 0.25 L = 0.125 moles
Step 3: Convert the number of moles to grams
Mass of NaOH = Number of moles x Molar mass
Mass of NaOH = 0.125 moles x 40 g/mol = 5 g
Therefore, the mass of NaOH present in 250 mL of 0.5 M NaOH solution is 5 grams, which corresponds to option C.
Given:
Volume of NaOH solution = 250 mL
Molarity of NaOH solution = 0.5 M
To find:
Mass of NaOH present in the solution
Formula:
Molarity (M) = Number of moles (n) / Volume in liters (V)
Number of moles (n) = Molarity (M) x Volume in liters (V)
Conversion:
1 L = 1000 mL
1 mole of NaOH = 40 g
Calculation:
Step 1: Convert the volume from mL to L
250 mL = 250/1000 L = 0.25 L
Step 2: Calculate the number of moles of NaOH
Number of moles (n) = Molarity (M) x Volume in liters (V)
Number of moles (n) = 0.5 M x 0.25 L = 0.125 moles
Step 3: Convert the number of moles to grams
Mass of NaOH = Number of moles x Molar mass
Mass of NaOH = 0.125 moles x 40 g/mol = 5 g
Therefore, the mass of NaOH present in 250 mL of 0.5 M NaOH solution is 5 grams, which corresponds to option C.
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Community Answer
How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)...
No. of moles of NaOH
Mass of NaOH = 40 × 0.125 = 5g
Mass of NaOH = 40 × 0.125 = 5g
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How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)7.32 gb)3.8 gc)5gd)0.5 gCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)7.32 gb)3.8 gc)5gd)0.5 gCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)7.32 gb)3.8 gc)5gd)0.5 gCorrect answer is option 'C'. Can you explain this answer?.
How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)7.32 gb)3.8 gc)5gd)0.5 gCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)7.32 gb)3.8 gc)5gd)0.5 gCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many grams of NaOH are present in 250 mL of 0.5 M NaOH solution?a)7.32 gb)3.8 gc)5gd)0.5 gCorrect answer is option 'C'. Can you explain this answer?.
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