Question: This is an EXCEL question. 8. The accompanying table shows the calibration data for the chemical analysis of silica; X is the known amount of

This is an EXCEL question.

This is an EXCEL question. 8. The accompanying table shows the calibration

8. The accompanying table shows the calibration data for the chemical analysis of silica; X is the known amount of silica and Y is the absorbance of the solution. An unknown sample had an absorbance value of 0.242. Find the amount of silica in the unknown and give the 95% confidence limits. 0.060 Y 0.000 0.032 0.020 0.135 0.040 0.185 0.080 0.359 0.100 0.435 0.120 0.511 0.268

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