Standard Curve: What is the concentration of tube 6? M Show the work in your notebook. Question 6 1 pts Various pH: What is the concentration of phenol red in the tubes 16 ? M Tubes: \begin{tabular}{lccccccc} Tubes: & 1 & 2 & 3 & 4 & 5 & 6 & 7 \\ 25mM glycine buffer, pH9.8(mL) & 2.4 & 2.4 & 2.4 & 2.4 & 2.4 & 2.4 & 2.4 \\ \hline 104M phenol red, (mL) & & 0.03 & 0.06 & 0.12 & 0.18 & 0.24 & 0.30 \\ H2O,(mL) & 0.6 & 0.57 & 0.54 & 0.48 & 0.42 & 0.36 & 0.30 \\ Final [phenol red] (M) & 0 & 1 & 2 & 4 & 6 & 0 & 10 \end{tabular} -1M=1106M