Put these aqueous solutions in order of decreasing freezing point 0.1 m NaCl 0.1 m MgCl2 0.1 m CH3OH 0.1 m Na3PO4
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Put these aqueous solutions in order of decreasing freezing point
0.1 m NaCl
0.1 m MgCl2
0.1 m CH3OH
0.1 m Na3PO4
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- 3 mL of a 45 mM stock solution of a substrate is added to 8 mL of water. Calculate the following values. The substrate molecular weight is 125 g/mol. Calculate the following values: Substrate Volume in mL Dilution Factor Substrate number of moles Substrate concentration for the diluted solution in mM Substrate concentration for the diluted solution in mole/L Substrate concentration for the diluted solution in mg/mLHow much of the enzyme proteinase k (solute) is required to make 250ml of a solution with a concentration of .01mg/ml? (Weight/volume ratio)50 mL of 5mM NaCl solution from 1 M NaCl solution
- Estimate the pH of a 7.18 x 106 M HF solution. You can calculate the lowest possible pH, knowing that the actual value will be higher. Your answer should contain 3 decimal places as this corresponds to 3 significant figures when dealing with logs. pH will be above Select the solution with the highest pH. Multiple Choice 0.0225 MLIOH 0.0225 MH2CO3 0.0225 MCH3NH2Complete the table: Solute Mass of solute Moles of solute Volume of solution Molarity of solution MgSO4MgSO4 0.638 gg _____ 27.0 mLmL _____ NaOHNaOH _____ _____ 125.0 mLmL 1.35 MM CH3OHCH3OH 13.5 gg _____ _____ 0.480 MA pH of 0 would mean an H+ concentration of 1M O True O False
- A 0.10 M NaCl solution is (hypertonic/hypotonic/isotonic) to a 0.1M glucose solution.A 1.143 g sample contains only vitamin C (C,H, 0,) and sucralose (C,H,Cl, O,). When the sample is dissolved in water to a total volume of 31.7 mL, the osmotic pressure of the solution is 3.91 atm at 285 K. What is the mass percent of vitamin C and sucralose in the sample? vitamin C: sucralose: %At what pH does a lysine solution exhibit the highest buffering capacity? (Lysine pKas: pk1 = 2.2, pK2 = 8.95, pK3 = 10.5) %3D O рH 12.1 О рH 9.72 O pH 5.67 pH 8.95