chemistry111 lap

Name TA

Dete rm i n a tion of Phuos rd;:illrTa tu ra I Wa te rs

1. What are some special safety considerations for this lab?

2, What does "ppm" stand for?

iV 3. Why is it important to set the wavelength of the Spec 20 to 700 nm?

. If the equation for your calibration curve was y:0.139x + .0021and your water sample showed an absorbance of 0.023, what was its concentation of phosphate in ppm?

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