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A dialysis bag containing a starch solution is placed in an open water bath containing distilled water. The dialysis bag is removed from the water at 10 minute intervals for 30 minutes and weighed. The initial mass of the dialysis bag is 10.40 g. The mass of the dialysis bag at 10, 20, 30 minutes is 10.65 g, 10.90 g, and 11.15 g, respectively. Determine the rate of change in mass in g/ks at 30 minutes.
−0.417 g/ks
0.417 g/ks
0.024 g/ks
0.085 g/ks

Sagot :

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The rate of change is 0.417 g/ks. Option B

What is the rate of change in mass?

We know that the term rate has to do with the way that something changes with time. We can see that the mass of dialysis bag is changing with time. To obtain the rate, we have to find the ratio of the change in mass to the change in time.

  • Change in mass = 11.15 g - 10.65 g = 0.5 g
  • Change in time = 30 minutes - 10 minutes = 20 minutes or 1200 s or 1.2 kilo seconds

Hence;

Rate of change of  in g/ks = 0.5 g/1.2 kilo seconds = 0.417 g/ks

Learn more about rate of change:https://brainly.com/question/12786410

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