how chemicals are used withing the chemical making process. What role do chemical engineers play in the final product?

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

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.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?