Community Answer

# Using the given standard values of chromium solutions, we can draw a graph and find its best fit equation. Using this equation we can find the concentration of the urine sample. Using either excel or any regression calculator, we find that the equation of the best fit line is y = 2.08x + 3.9 where y is the Chromium emission and x is the concentration. Using this equation, we find the value of concentration for which emission value is 2 ... See the full answer