g The following two-stage process has been proposed to increase the purity of species 1. The feed to the first stage consists of 0.4 mol/s of species 1 and 1.6 mol/s of species 2. Determine the values of the total rate of vapor out of the second stage, VS2 (mol/s) and the mole fraction of species 1 out of the second stage (y1,S2).

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 produces wave a)sound b) heats c)transfer of energy d)vibrations

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied