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- A student performs a separation by TLC on a silica get plate that results in three spots. Ared spot is measured 23 mm away from the original sample spot, a blue spot is 42 mmaway, and a yellow spot is 49 mm away. The distance from the original spot to where thesolvent stopped is 55 mm.a) Calculate the Rf value for each component in the mixture. (Show your work and reportthe correct number of significant figures.) b) The silica gel plate is polar. Rank the three components in the mixture from lowest tohighest polarity. Explain your answer.Difference between heterogeneous and homogeneous mixtures.* | AM% stle Chiral compounds, have identical chemical properties but differing in certain physical and biological properties. O False True
- Solidification is the process of changing the state of the material from .. powder to solid liquid to solid. solid to liquid. solid to solid none of the above OO 0ooboIf you want to make 7 L of 1X TGS (Tris/Glycine/SDS Running Buffer) using 8 x TGS stock, how much of the 8 x stock do you need? Report your answer to 1 decimal place.What types of quantities have unlimited significant figures? physical quantities measured quantities chemical quantities counted quantities scientific quantities
- You own a compounding able pharmacy and are presented with a presciption for fortified gentamicin eye drops 5mg/mL. You have in stock a gentamicin injection at 40mg/ml and 5ml gentamicin eye drop labled to contain 3mg/ml. How many mililiters of the injection should be added to the 5ml of the commercial eye drop to gice it a 5mg/ml "fortifited" concentration?An aqueous solution of manganese(II) iodide has a concentration of 0.189 molal. The percent by mass of manganese(II) iodide in the solution is Submit Answer Retry Entire Group 9 more group attempts remainingA water solution contains 60% Na2S202 together with 1% soluble impurity. Upon cooling to 10°C, Na2S202 • 5 H2O crystallizes out. The solubility of this hydrate is 1.4lb Na2S202 • 5 H20/lb free water. The crystals removed carry asadhering solution 0.06 lb solution/lb crystals. When dried to remove the remaining water (but not the water of hydration), the final dry Na2S202 5 H20 crystals must not contain more than 0.1% impurity. To meet this specification, the original solution, before cooling, is further diluted with water. On the basis of 100 Ib of the original solution,calculate (a) the amount of water added before cooling, and (b) the percentage recoveryof the Na2S202 in the dried hydrated crystals
