NEET Exam  >  NEET Questions  >  Which of the following should be done in orde... Start Learning for Free
Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)
  • a)
    Add 5.85 g NaCl
  • b)
    Add 20 ml water
  • c)
    Add 0.010 mole NaCl
  • d)
    Evaporate 10 ml water
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following should be done in order to prepare 0.40 M NaCl ...
Free Test
Community Answer
Which of the following should be done in order to prepare 0.40 M NaCl ...


Steps to prepare 0.40 M NaCl starting with 100 ml of 0.30 M NaCl:

Step 1: Calculate the moles of NaCl in 100 ml of 0.30 M NaCl solution
- Molarity (M) = moles of solute / volume of solution (L)
- 0.30 M = moles of NaCl / 0.1 L (100 ml = 0.1 L)
- Moles of NaCl = 0.30 M x 0.1 L = 0.03 moles

Step 2: Determine the additional moles of NaCl needed to make 0.40 M NaCl
- Final moles of NaCl = 0.40 M x 0.1 L = 0.04 moles
- Additional moles needed = 0.04 moles - 0.03 moles = 0.01 moles

Step 3: Calculate the mass of NaCl needed to provide 0.01 moles
- Moles = mass / molar mass
- 0.01 moles = mass / 58.5 g/mol
- Mass = 0.01 moles x 58.5 g/mol = 0.585 g

Therefore, to prepare 0.40 M NaCl starting with 100 ml of 0.30 M NaCl, you should add 0.585 g of NaCl to the solution.
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
Explore Courses for NEET exam

Top Courses for NEET

Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer?
Question Description
Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Which of the following should be done in order to prepare 0.40 M NaCl starting with 100 ml. of 0.30 M NaCl (mol.wt.of NaCl=58.5)a)Add 5.85 g NaClb)Add 20 ml waterc)Add 0.010 mole NaCld)Evaporate 10 ml waterCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice NEET tests.
Explore Courses for NEET exam

Top Courses for NEET

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev