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- Five dialysis bags, impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 M sucrose solution. At 10 minute intervals, the bags were weighed and the percent change in mass of each bag was graphed. Which line represents the bag that contained a solution isotonic to the 0.6 M solution at the beginning of the experiment? Which line represents the bag with the highest initial concentration of sucrose? Which line or lines represent bags that contain a solution that is still hypertonic at the end of 60 minutes? What is the best explanation for the shape of line e. after 50 minutes?Can a successful experiment be performed without constants? Explain why or why not.From the figure attached, show where materials moved in this experiment using arrows to demonstrate movement for each substance. Use blue arrow for water, red for glucose, and green for starch.
- How to graph a scatter plot /X-Y plot of ph and absórbance. pH is the independent variable (x-axis) and absórbance is the dependent variable (y-axis) ?Why is it a good idea to perform three trials at each temperature? How would you modify the experiment to produce more reliable results?) If you counted 500 CFU’s in the petri dish for number 6 and 5000 CFU’s in petri dish for number 7, what would be the most justifiable explanation for this? 19) If the original sample’s concentration was 12 bacterial cells, what do you expect the count to be?
- if you perform a 1:5 dilution of a 1 M solution , how many parts of the 1 M solution do you use, and how many parts of the diluent do you use?"If you count 70 colonies from a urine culture obtained using 0.001ml calibrated loop, how many colony forming units (CFU) will be reported?" 70 700 7000 70000 700000Which would be the control plate for the NaCl experiment and the Sucrose experiment and why?