What would be an advantage of using a solar cell as a model for a leaf?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

How many moles are in 1.26*10^24 particles in significant figures

When scientists are ready to publish the results of their experimentation, why is it important for them to include a description of the procedures they used?