Question

A group of students investigated the effect of soaking small onion bulbs in different concentrations

Answer 1

Answer:

This question is incomplete

Explanation:

This question is incomplete but the missing table of the question is attached in the document below.

To determine the percentage change in mass, the formula below is used

(mean mass after soaking - mean mass before soaking)/mean mass before soaking × 100

Thus, for the last concentration (200 g/dm³) that wasn't calculated

(175 - 183)/183 × 100 = -4.4

The reason for calculating the percentage change in mass of the onions is to know if an increase in concentration of sodium chloride leads to an increase or decrease in size of onions. And from the result, the increase in concentration of the sodium chloride solution led a decrease in size of the onion (thus the reason for the negative sign of the percentage as the concentration increases).

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Answer 2

Answer:

increase in mass of water