Solutions with a constant volume of 10.0 mL contain 0.750mg ofdissolved tooth enamel plus variable concentrations of addedSr.
Added Sr(ng/mL=ppb) Signal(arbitrary units)
Added Sr: 0 , 2.50, 5.00, 7.50, 10.00
Signal: 28.0, 34.3, 42.8, 51.5, 58.6
a.) Find concentration of Sr and its uncertainty in the 10.0mLsolution in ppb.
b.) Find concentration of Sr in tooth enamel in ppm.
c.) If the standard addition intercept is the major source ofuncertainty, find the uncertainty in the concentration of Sr intooth enamel in ppm.
d.) Find the 95% confidence interval for Sr in tooth enamel
I figured out a: 8.72 +/- 0.43 ppb, I just don't understand therest
