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anonymous

  • one year ago

Does anyone know how to explain "which solution could you prepare by dilution?" it's multiple choice

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  1. Rushwr
    • one year ago
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    What do u mean ?

  2. Rushwr
    • one year ago
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    Can u show me the multiple choice ~

  3. anonymous
    • one year ago
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    400 milliliters of 2.50 molar solution from a 2.00 molar stock solution 600 milliliters of 3.00 molar solution from a 2.50 molar stock solution 700 milliliters of 4.50 molar solution from a 3.00 molar stock solution 900 milliliters of 3.50 molar solution from a 4.50 molar stock solution

  4. anonymous
    • one year ago
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    A is wrong though

  5. Rushwr
    • one year ago
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    @Photon336

  6. Rushwr
    • one year ago
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    is it the last answer !@Photon336

  7. Photon336
    • one year ago
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    \[N _{a}V _{a} = N _{b}V _{b}\] I think we would have to use this formula

  8. anonymous
    • one year ago
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    So should I go with D?

  9. Photon336
    • one year ago
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    @Gemini_babe17 let me check

  10. Photon336
    • one year ago
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    @rvc hey, can you help with this question?

  11. Photon336
    • one year ago
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    @Gemini_babe17 sorry but i'm not sure @nincompoop help?

  12. anonymous
    • one year ago
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    Ok

  13. Photon336
    • one year ago
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    @taramgrant0543664 do you know the answer to this question like how to do it? I have no idea

  14. taramgrant0543664
    • one year ago
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    Well n=cv Where n is the number of moles c is concentration v is volume In this case the the moles will be the same so you could do c1v1=c2v2 Where the ones with 1 is the stock solution and the ones with 2s are the solution you are making But in this question we don't really need it because if you are making a solution from a stock your stock solution will have a higher concentration So in A the stock solution is 2.0M you can't make your solution 2.5M So D is the only one that would work since the stock solution is 4.5M diluting to a 3.5M solution

  15. Photon336
    • one year ago
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    @taramgrant0543664 nicely done

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