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Unformatted text preview: each bleach sample. Enter the calculated mass
percent of NaClO in each of the three acceptable trials.
Be sure to enter your mass
percent values in the corresponding order that you entered your masses of your bleach
samples and volumes of your sodium thiosulfate previously. The bleach sample mass
you entered for entry #1 and the volume of sodium thiosulfate you entered above should
correspond to the mass percent of NaClO you enter for entry #1 here.
Using your three trial values, calculate the average mass percent of NaClO. Enter the
average mass percent of NaClO in the bleach sample. (Use three significant figures)
Please enter the standard deviation of the average mass percent of NaClO in your bleach
sample. 6 Please enter the calculated 90% confidence limit for the average mass percent of the
NaClO in your bleach samples.
We will now determine the percent error in your analysis of the percent mass of NaClO
in your bleach sample. In order for us to identify which unknown sample you analyzed,
you will need to enter your laboratory room number, locker series a...
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- Spring '07