N2+312 --> --> 2N13
If 66.4 grams of lodine is reacted with 4.49 grams of nitrogen what is the theoretical yield?
(Include the correct number of significant figures but no units)

0.09 moles of sodium sulfate in 12 ml of solution

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.

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1: