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Chemistry

This is a lab called Enthalpy and Entropy of Borax Dissolution and I just can't seem to get the right answers... Please help me fill in the blanks

The _____ (acid/HCl?)is placed in the buret and the ____ (base/borax?) is placed in the flask beneath
the buret.

For this experiment bromocresol green is a(n) indicator and added to the _____ (borax/basic?) solution before titration.
The color of bromocresol green indicator is yellow when pH < 4, green when pH 4- 5.3 and blue in pH > 5.3.

The titrant volume when the bromocresol green changes color is called the _____.

Thanks!

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Tim

  1. I know I'm to help fill in the blanks but I'm a little confused. The last blank should be "end point." I think HCl is the first one, borax the second. Is this what you need?

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    DrBob222

  2. Sorry, if I wasn't very clear. I've tried both acid and HCl for the 1st blank and borax and base for the 2nd blank, but still wrong. end point is right though!

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    Tim

  4. Try it the other way around. You may have the acid in the beaker and the borax in the buret.l

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    DrBob222

  5. Is this your question:

    The ____ is placed in the buret and the _____ is placed in the flask beneath the buret. For this experiment bromocresol green is a(n) ______ and added to the________ solution before titration. The color of bromocresol green indicator is______ when pH < 4, green when pH 4- 5.3 and ______ in pH > 5.3.
    The titrant volume when the bromocresol green changes color is called the______ .

    ANSWERS: titrant, analyte, indicator, analyte, yellow, blue, end point.

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    blob

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