What is the number of particles in 27.5 grams of chromium (iii) sulfite ?

In which phase(s) do the molecules take the shape of the container?

Which position represents spring in the southern hemisphere? a) b) c) d)

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.