Question

1. in chemistry class, some students make solutions by mixing water (h₂o) with potassium iodide (ki). from the table, maurice identified the constant of proportionality to be 0.04 and wrote the equation y = 0.04x to represent the relationship between the amount of potassium iodide and water in the solutions. is maurice correct? answer

h₂o (ml)	ki (g)
30	1.2
55	2.2
70	3.5

justify your answer.

Explanation:

Step1: Calculate ratio for first row

For the first row, $\frac{KI}{H_2O}=\frac{1.8}{45}= 0.04$.

Step2: Calculate ratio for second row

For the second row, $\frac{KI}{H_2O}=\frac{1.2}{30}=0.04$.

Step3: Calculate ratio for third row

For the third row, $\frac{KI}{H_2O}=\frac{2.2}{55}=0.04$.

Step4: Calculate ratio for fourth row

For the fourth row, $\frac{KI}{H_2O}=\frac{3.5}{70}=0.04$.

Answer:

Yes, Maurice is correct. The ratio of the amount of potassium iodide to water in each case is 0.04, indicating a proportional relationship with a constant of proportionality of 0.04.