28.2. Chromatographic separation of some species are given? What type of stationary phase is used? Answer: NO₂, Bro Poate MPO, CT Br NO, Time, mis (A) (LIC) Mg Cafe Spie Ba Time, mis sh) 28.5. What are the affinity ligands? Answer: 12 16 28.3. Give an example for the biochemical application of the lon exchange chromatography? Answer:

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1-arr In a study of the gas phase decomposition of phosphine at 120 °C PH3(g)- →1/4 P4(g) + 3/2 H2(g) the concentration of PH3 was followed as a function of time. It was found that a graph of In[PH3] versus time in seconds gave a straight line with a slope of -2.50×10² s1 and a y-intercept of -3.24. Based on this plot, the reaction i v O order in PH, and the half life for the reaction is seconds. zero first second

3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industria strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume o vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas produced (mL.) vs. Time (s) for Volcano #1 Time Volume of gas (s) produced (ml) 60 E 50 10 20 30 25 8 40 38 46 30 20 Volume of gas produced (ml) 40 50 50 60 52 of 10 53 20 40 60 80 Time (s) Volcano # 2 Volume of gas Volume of gas produced…

Help 100% 47 T. "ublic Health Ch HSC 258 - Major Projec x MindTap - Cengage Lea X C The Illustration To T =55750828934189288909969212&elSBN=9781305657571&id=D1061392007&nbld=21... * Q Search t Referonces Use the References to access important values if needed for this question. For the following reaction, 50.4 grams of sulfur dioxide are allowed to react with 17.9 grams of water. sulfur dioxide (g) + water (I) sulfurous acid (H2SO3) (g) grams What is the maximum amount of sulfurous acid (H,SO3) that can be formed? What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit Answer

look # 80 F3 DEC 15 . Choose BEST answer from drop-down menu a) 1.25 ml b) 8.7 ml c) 8.75 ml d) 9.25 ml What amount of liquid is in this graduated cylinder? 9 Choose Q Choose BEST answer from drop-down menu F4 docs.google.com 95 Post Attendee - Zoom In the highly unlikely event of a fire in the laboratory, you should: a) use the fire extinguisher. b) stop, drop, and roll. c) calmly evacuate the lab. F5 tv A 6 8 لسلسل F6 MacBook Air & F7 * 8 DII F8 9 F9 F10 CH

Where am I going wrong?   The collision cross section for neon is 0.24 nm2.Calculate the mean free path (in nanometers), between collisions for neon atoms at a pressure of 1.00 atm and a temperature of 31°C.    λ = _______ nm.