11, show the volume of stock and diluent needed to prepare 200mL of 0.4M solutio

Question

11, show the volume of stock and diluent needed to prepare 200mL of 0.4M solution from #9. 12. On a microscope with a l 0x objective in place, 10 reticle units (ra) equal 0.1mm. What is the diameter (in mm) of a cell that is 7 r.u. across? Show work for full credit. 13. On a microscope with a 40x objective in place, 10 reticle units (ru) equal 0.025mm. What is the d (in mm) of a cell that is 34 r.u. across? Show work for full credit ?·?)//4?-o,"21>Mvnm. ?.(1. Win 2 work for full 14, For the cells described in #12 and #13, calculate which one has the larger volume and show 15. In the anatomy class you are taking, a lab instruction calls for drawing a specimen at a total magnifiction of ocular 400x. With a microscope equipped with a 10x ocular eyepiece, what objective should you be using? 16. Electron microscopes use electrons as a source of illumination and capable of achieving a total magnification of 10000000x. Using an electron microscope, you noticed that a particular cell specimen has no organelles. t can you conclude about the cell with this observation? of el ceClee

Explanation / Answer

From #12, the diameter of cell is d1 = 7um.

Then volume = pi x d13/6 = pi x 73/6 = 179.6 um3.

From #13, the diameter of cell is d2 = 2.12um.

Then volume = pi x d23/6 = pi x 2.123/6 = 4.989 um3.

So, the volume in #13 has larger volume than #12.

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