Consider that you prepared a solution by dissolving 1.19 mL of an unknown organic substance (d = 0.953 g/mL) into 29.9 mL of cyclohexane (d = 0.774 g/mL). What is the mass percent of the unknown in the solution? Enter your answer in units of mass percent to three significant figures.

What is i fracture in the crust called when land move up, down or sideways

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

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.