This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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a) From the results in the table, it is evident that increasing the concentration of sodium chloride has a negative effect on spinach seed growth. As the concentration of sodium chloride increases from 0.00 mol/L to 0.18 mol/L: • The percentage of spinach seeds that started to grow roots decreases significantly, from 99.98\% to 54.0\%. • The mean root length also decreases consistently, from 17.70 mm to 7.60 mm. This indicates that higher concentrations of sodium chloride inhibit both the germination rate and the subsequent growth of roots in spinach seeds. b) Apart from a ruler, two other pieces of equipment one would need to determine the rate of growth in roots are: 1. A stopwatch or timer to accurately measure the time intervals over which growth occurs. 2. A magnifying glass or microscope to observe and measure the small roots more precisely. Send me the next one 📸