Yellow #5 - 534.4 g/mol

Blue #1 - 792.84 g/mol

Red 40 dye - 496.42 g/mol

Stock concentrations of the food dyes are prepared as follows: 0.26 g Yellow #5 in 100 mL, 0.081 g Blue #1 in 100 mL, and 0.32 g Red 40 in 100 mL. Calculate the concentration in mole/L (M) for each stock concentration of dye.

If 4 mL of the stock concentration of Red 40 (Q#2) was diluted to a final volume of 50 mL, what is the concentration (mg/mL) of the diluted solution?