A9.87-mol sample of zr represents how many atoms?

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

What is the independent variable in this investigation? mass volume sample number substance density

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.