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CookieMonster101

  • 3 years ago

I am having dificutly wwith density and slope. I have to figure out the mass, volume, and density. I have attached the sheet with the question.

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  1. CookieMonster101
    • 3 years ago
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  2. CookieMonster101
    • 3 years ago
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    I need help with question 1 a) b) c) & d)

  3. CptnChiguire
    • 3 years ago
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    The first three questtion you can read directly from the graph: a) 30 g b) 25 ml c) 45 g

  4. CptnChiguire
    • 3 years ago
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    For question d: Density is how much mass there is per volume, that is, if you got X grams in Y mililitres, you have a density of X/Y g/ml

  5. CookieMonster101
    • 3 years ago
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    i got a) 35 b) 50 c) 60

  6. CptnChiguire
    • 3 years ago
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    How did you get those results?

  7. CookieMonster101
    • 3 years ago
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    I looked at where the dots were OH WAIT ! i think im look at mass !

  8. CookieMonster101
    • 3 years ago
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    looking *

  9. CookieMonster101
    • 3 years ago
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    wait, i have no idea what im doing !

  10. CptnChiguire
    • 3 years ago
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    For example, for 40 mL substance A I looked at how high the line was at the 40mL mark, and it seems it is 30g high

  11. CookieMonster101
    • 3 years ago
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    OHHHHHHHHHHH

  12. CookieMonster101
    • 3 years ago
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    but i still don't get what to do for d) ?

  13. CptnChiguire
    • 3 years ago
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    ok :P now, see what I wrote before? Density is how much mass there is per volume, that is, if you got X grams in Y mililitres, you have a density of X/Y g/mL, are you following?

  14. CptnChiguire
    • 3 years ago
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    Using the previous answers, for example for substance A we have there are 30g in 40 mL, therefore, it has a density of 30/40 g/mL

  15. CptnChiguire
    • 3 years ago
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    (or three quarters grams per mililitre)

  16. CookieMonster101
    • 3 years ago
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    don't you divide or multipy the thing ?

  17. CptnChiguire
    • 3 years ago
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    yeah, density is mass divided by volume (g/mL)

  18. CookieMonster101
    • 3 years ago
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    what substances am I supposed to find the density of ?

  19. CptnChiguire
    • 3 years ago
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    All three of them :P I did for A, now you can do it for B and C, you just have to divide the respective masses and volumes

  20. CookieMonster101
    • 3 years ago
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    ok

  21. CookieMonster101
    • 3 years ago
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    thank -you ! :}

  22. CptnChiguire
    • 3 years ago
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    Tell me what you got when you are ready :)

  23. CookieMonster101
    • 3 years ago
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    ok

  24. CookieMonster101
    • 3 years ago
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    density of the substances a) 0.75 b) 1 c) 1.5

  25. CptnChiguire
    • 3 years ago
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    That's what I got :) and you will also notice, that those are alse the values of the respective slopes in the graph ;)

  26. CptnChiguire
    • 3 years ago
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    *also

  27. CookieMonster101
    • 3 years ago
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    ohhhhhhhh

  28. CookieMonster101
    • 3 years ago
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    IM SO SMART :)

  29. CptnChiguire
    • 3 years ago
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    Hehehe, cheers, mate, nice work :P

  30. CookieMonster101
    • 3 years ago
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    LOOL, Thanks for the help :D

  31. CptnChiguire
    • 3 years ago
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    No probs ;)

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