How are man-made elements created?

What shape would a molecule with two bound groups and two lone pairs have?

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.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?