it shows h ge per uni o Lab Exercise 3B progresses in time. The slope of each li
ID: 203394 • Letter: I
Question
it shows h ge per uni o Lab Exercise 3B progresses in time. The slope of each line is the rate, which is ashowy progresses in time. The slgur ate the slope and determine the rate of change,i This type of graph is called a progress curve or a time course, because Each sample tested will have a rate at which it gained or lost slope of the line for cumulative percent change in mass will gveght Use the formula for slope to calculate the 3 rates of change. ou the 5) w Complete Ta d. ate of cumulative percent change per KC Rate of cumulative change per KCI concentration 6) I t change in mass Concentration 0%KCI 1% KCI 4% KCI .16 4.8-1.6//yo-1. = RATE of cumulative percent change in mass per minute Slope= X,-X For 0% Ka- yo For 1% KCl.3-153 :0 Mo 20 For 496 KCI 1) What is the dependent variable? 2) What is the independent variable? 3) Is the independent variable quantitative? 4) Is the independent variable continuous? 112Explanation / Answer
Ans 1: dependent variable is rate of cumulative percent change in mass.
2. Independent variable: concentration of KCl.
3. Yes, quantitative.
4. No, independent variable is not continuous, it is discreet.
5. Line graph.
6. Line graph are preferred mode to represent changes that have smaller magnitude.
(Dear student, please provide values of X&Y for 4% KCl).
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