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PLEASE HELP! show all calculations for 1-5. solutions will be made in lab 1. Calculations to make 10ml of 4% (w/v) isonitrosopropiophenone (INPP) in 95% ethanol 2. Calculations to make 50ml of 100mM urea (MW=60.0) 3. Calculations to prepare 50ml of 1mM urea standard by dilution from the 100mM stock. 4. calculations to make 100ml of 0.1M glycine with a pH of 9.5. Reach pH with NaOH or HCL. (MW glycine= 75.07) 5. Calculations to make 50ml of 0.25M arginine...
In this activity, you will use solutions math to prepare recipes to make a number of solutions. A list of available substances to use when preparing your solutions is included below, only those solutes or solutions can be utilized. In the cabinet you have the following substances: A bottle of stock 90% Ethanol A bottle of stock 1M NaHCO3 (liquid; mw=84.07) A bottle of sucrose crystals (solid; mw=342) A large bottle of NaCl (solid; mw=58) A large bottle of agarose...
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petermine the amounts/volumes of the chemicals needed to prepare the following solutions s 100 ml of O.1 N HC from concentrated (12.0 M) HO tyou will be asked to make this solution as practicel & 100 ml of L.0 M Tris pt-76 MW of Tris base is 121 g/mole 7. pH 7.6 is close to a neutral pH. When making 1.0 M Tris base, would you expect to or NaOH to adjust the pH to 7.67 to need HC...
the class is EGEN 350 pleas i need the answers of questions 2
and 3
2. (3pts) Which of the following is a valid probability mass function? 20 15 0.1 10 0.2 0.4 0.1 10 0.4 15 0.2 20 0.1 P(Xx) 0.2 10 15 0.2 20 C. P(X-x) 0.2 0.4 0.2 10 0.4 15 20 0.1 P(X x) 0.2 0.5 Show Your Work: Write legibly and darkly. Place your answer in the box (where provided) 3. Computer chips often contain...
Question 6 Using stock solutions to make up a solution: from final concentration to volume You need to digest a sample of DNA with a restriction enzyme. You will do this reaction later in the semester. The buffer for this reaction has a final concentration of 40 mM Tris, pH 7.5, 10 mM MgCl2 and 50 mM KCl. You have the following stock solutions: 0.5 M Tris, pH 7.5, 1 M MgCl2 and 2 M KCl. How would you make...
determine the volume in milliliters required to prepare each of the following diluted solutions A. 257 mL of a 0.200 MHNO3 solution from a 3.80 M HNO3 solution B .718 mL of a 0.100 MMgCl2 solution using a 6.50 M MgCl2 solution C .6.00×10−2 L of a 0.150 MKCl solution using an 8.30 M KCl solution
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Concentrations of Solutions 1. (a) Calculate the molarity of a solution containing 200. g of MgCl2 dissolved in 1.50 L of water. (b) Calculate the molarity of a solution containing 10.0 g of NaOH dissolved in 500. mL of water 2. (a) Calculate the molarity of a solution containing 50.0 g of Fe(NO3); diluted in 1.00 L of water. (b) Calculate the molarity of each individual ion in...
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POST-LAB QUESTIONS (Type in your answers to the questions below) 1. In Activity 1 how would the amount of NaCl produced be affected (more, less, remain the same) if instead of adding 2 mL of 1 M NA,CO, you added 4 ml. Explain. 2. In Activity 6 how would the amount of NaCl produced be affected (more, less, remain the same) if instead of adding 2 mL of 1 M HCl you added 4 ml. Explain. 3....
2. You are performing PCR under the following conditions: 1. Each PCR reaction contains 50 pl final volume II. Each PCR reaction contains: 1x PCR buffer, 1.5 mM MgCl2, 0.2 mM dNTP mix, 0.2 MM sense primer, 0.2 uM anti-sense primer, 1.5 units of Taq polymerase and 2 ul of DNA template. [all concentrations are final] III. Stock solutions of the following reagents are available: 10x PCR buffer, 25 mm MgCl2, 10 mM dNTP mix, 10 M of sense primer,...
(3) (i) How many mLs of a 0.5 M KH2PO4 stock solution are needed to make 250 mLs of a 2.5 mM K solution (1 mark)? (ii) How many g of Ca(NO3)2 are needed to make 300 mLs of a 1 M Ca(NO3)2 stock solution (1 mark)? (iii) What is the concentration of Nations in the -Mg nutrient treatment in mM and ppm as given in Table 1 (1 mark)? (iv) What is the concentration of Cl- ions in the...