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anonymous

  • one year ago

***I will fan and medal. Please Help*** If you ever swam in a pool and your eyes began to sting and turn red, you felt the effects of an incorrect pH level. pH measures the concentration of hydronium ions and can be modeled by the function p(t) = −log10t. The variable t represents the amount of hydronium ions; p(t) gives the resulting pH level. Water at 25 degrees Celsius has a pH of 7. Anything that has a pH less than 7 is called acidic, a pH above 7 is basic, or alkaline. Seawater has a pH just more than 8, whereas lemonade has a pH of approximately 3.

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  1. anonymous
    • one year ago
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    1. Create a graph of the pH function either by hand or using technology. Locate on your graph where the pH value is 0 and where it is 1. You may need to zoom in on your graph.

  2. anonymous
    • one year ago
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    2. The pool maintenance man forgot to bring his logarithmic charts, and he needs to raise the amount of hydronium ions, t, in the pool by 0.50. To do this, he can use the graph you created. Use your graph to find the pH level if the amount of hydronium ions is raised to 0.50. Then, convert the logarithmic function into an exponential function using y for the pH.

  3. anonymous
    • one year ago
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    3. The pool company developed new chemicals that transform the pH scale. Using the pH function p(t) = −log10t as the parent function, explain which transformation results in a y-intercept and why. You may graph by hand or using technology. Use complete sentences and show all translations on your graph. p(t) + 1 p(t + 1) −1 • p(t)

  4. anonymous
    • one year ago
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  5. anonymous
    • one year ago
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    @UsukiDoll

  6. anonymous
    • one year ago
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    @butterflydreamer

  7. anonymous
    • one year ago
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    @jigglypuff314

  8. anonymous
    • one year ago
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    This is not Chemistry. This is Algebra 2

  9. jigglypuff314
    • one year ago
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    is -log10t a base 10 or log(10t) ?

  10. anonymous
    • one year ago
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    base 10

  11. jigglypuff314
    • one year ago
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    https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&es_th=1&ie=UTF-8#q=y+%3D+-log(x) what is x when y = 1 what is x when y = 0

  12. anonymous
    • one year ago
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    Wait, it does not have base 10

  13. jigglypuff314
    • one year ago
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    welll it's not making much sense because I assume pH can't be negative >.>

  14. anonymous
    • one year ago
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    I did the graph I think it is .20 for when y = 1 and 1 when y =0

  15. anonymous
    • one year ago
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    .10*

  16. jigglypuff314
    • one year ago
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    mhmm that's what I got, but I'm not completely sure of myself

  17. anonymous
    • one year ago
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    Ok, since both got the same. Can you help me with part 2 now please.

  18. jigglypuff314
    • one year ago
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    *scratches head* water pH = 7 7 = -log10t find t ? but he has to raise t by 0.5 so 7 = -log10(t+0.5) perhaps

  19. jigglypuff314
    • one year ago
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    *googles*

  20. jigglypuff314
    • one year ago
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    or they mean 0.5 = t solve for p(t)

  21. jigglypuff314
    • one year ago
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    aka look at x = 0.5 on the graph y = ?

  22. anonymous
    • one year ago
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    y = 0.3

  23. anonymous
    • one year ago
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    so is 7 = -log10(t+0.5) the function you are most positive with

  24. jigglypuff314
    • one year ago
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    nope

  25. anonymous
    • one year ago
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    yea i just tried to graph it but it did not work

  26. jigglypuff314
    • one year ago
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    sorry, I've gtg perhaps @chmvijay could help?

  27. anonymous
    • one year ago
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    @chmvijay I need your help with number 2 please

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