Using the following data table and graph, calculate the average k from the data. amount co2 (ml) amount of white solid (g) y x 10 0.15 20 0.30 30 0.46 40 0.62 50 0.77 k =

k = 63 mL/g

The equation for the straight line has the form

V = km +b

The formula for the slope k is  

k = ΔV/Δm = (V₂ -V₁)/(m₂ - m₁)

So, we pick any two points on the line, preferably as far apart as possible.

I will choose the points (0.77, 50) and (0.10, 8). Then

k = (50 mL – 8 mL)/(0.77 g – 0.10 g) = 42 mL/0.67 g = 63 mL/g

In other words, you get 63 mLCO₂ for every 1 g CaCO₃.

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /