What happens if the spots are made too large when preparing a TLC plate for development? 1. The spots will be difficult to see after development. 2. The spots will saturate the plate, show tailing, and/or diffuse into one another. 3. The spot material will dissolve off the plate. 4. Additional spots will appear on the plate, interfering with analysis.

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.

Which of the following words describe the reality that the universe looks the same from various perspective

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius