IV. Analyzing solved problems A. In this problem, the calculating has been done

Question

IV. Analyzing solved problems A. In this problem, the calculating has been done for you. The questions ask about the reasoning involved in the calculations. Problem: A sample of liquid has a mass of 1.04 kg and a volume of 1300 ml. If the mass of the sample is to be increased by 70 g by adding more of the same kind of liquid, what volume of liquid must be added? Solution. (1) 1040/1300=0.80 (2) 70/0.80=88 1. Give an interpretation (not a name) for the number 0.80 in this context. 2. Give an interpretation (not a name) for the number 88 in this context.

Explanation / Answer

1. ) 0.80 represents the mass in gram for 1 ml of sample liquid.

2) 88 represents the number of 0.80 gram drops of sample liquid to add 70 g of the same kind of liquid. Since each 0.80 gram drop represents 1 ml so 88 ml is the required answer.

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