What are the possible values of the basic property of Liquid Medicine (Vitamins)? Mass Density: Specific or Unit Weight: Specific Gravity: Viscosity: Surface Tension:
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What are the possible values of the basic property of Liquid Medicine (Vitamins)?
Mass Density:
Specific or Unit Weight:
Specific Gravity:
Viscosity:
Surface Tension:
For Example:
Mass Density: 845.4 kg/m^3 at 18°C
Specific or Unit Weight: 6.64 kN/m^3 at 18 °C
Specific Gravity: 0.659 at 18 °C
Viscosity: 0.000123 Pa.s at 20 °C
Surface Tension: 0.012 N/m
ps. not graded
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- Calculate pNF concentration in each cuvette using Beer-Lambert’s Law. ε = 18,000 M-1 cm-1; b = 2.00 cm Cuvette 1 pNF 1 mL Water 2 mL Absorbance 0.546Solution Absorbance mg/ml aspirin Standard solution - 1.6 mg/mL A 0.638 0.08 mg/mL B 0.504 0.064 mg/mL C 0.376 0.048 mg/mL D 0.259 0.032 mg/mL E 0.126 0.016 mg/mL A = -log T where T = %T ÷ 100 Construct a callibration curve using the above data. Absorbance should be on the vertical axis and "mg/mL of acetylsalicylic acid" on the horizontal axis. The line should go through the origin. Using the data provided, the graph you have generated, and the procedure that was used to generate the solutions which were examined by spectroscopy, calculate the amount of acetylsalicylic acid per tablet. Commercial tablet 1 labelled as 100 mg enteric coated Absorbance = 0.16 Commercial tablet 2 labelled as 300 mg Absorbance = 0.45 Student prepared tablet from practical 5 Absorbance = 0.19 Using the data provided, the graph you have generated, and the procedure that was used…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: %
- Q) Which one is right? -> Q) What percentage of the recommended daily dose of calcium (1,150 mg/day) does 1.0 L of your water provide? Show all calculations. (My water(CaCO3) : 66.73ppm) A1) 66.73mg/1150mg x 100 = 5.80% A2) CaCO3 = 100g/mol, Ca = 40g/mol 100g CaCO3 has 40g Ca. 66.73 CaCO3 has 40/100 x 66.73mg Ca Ca = 26.70mg 26.70mg/1150mg x 100 = 2.32%An aqueous solution contains 0.34 M potassium cyanide. One liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) 0.34 mol HCI04 0.16 mol NaOH 0.33 mol KCIO4 0.16 mol HCIO4 0.33 mol HCNi) Write down the equation derived from your Excel generated standard curve , figure legend and describe its components; ii) provide the values of the absorbance data of the unknown sample (do NOT show the absorbance data of the glycine standards). Show all details of the working out of your calculation. Indicate all units! Provide the answer with two decimals precision
- You dissolve a 3.435 gram sample of potato in acid to determine the levels of solanine (the reason why green potatoes are poisonous) and diluted it to a total volume of 500.0 mL. You have also created a standard curve as outlined below. Solve for the ug/gram concentration of solanine in the potato sample. ppm Solanine Std. Abs 0.213 5 0.315 10 0.423 15 0.532 Unknown sample 0.314 Your Answer:You are supplied with the following: / Jy word voorsien van die volgende: NaCl (Mr= 58,443 g /mol) 2.5M Tris-Cl, pH 8 solution /oplossing (1 Litre) EDTA (Mr= 380,2g/mol) 10% sodium dodecyl sulphate solution / natriumdodecyl sulfaat oplossing Proteïnase K solution / oplossing (50 mg dissolved / opgelos in 1 ml ddH2O) You need a digestion buffer consisting of the following: / Jy moet 'n verteringsbuffer op maak wat uit die volgende bestaan: 15m M NaCl 75 mM Tris-Cl,pH 8 16 mM EDTA,pH 8 0.8% sodium sulphate / natrium dodecyl sulfaat 0,75 mg/ml proteïnase K How will you prepare 500 ml of the digestion buffer? Show all your steps and calculations. Remember to explain exactly how you will make it up. / Hoe sal jy 500 ml van die verteringsbuffer voorberei? Wys al jou stappe en berekeninge. Onthou om te verduidelik presies hoe jy dit sal op maak.You are supplied with the following: NaCl (Mr = 58.443 g/mol) 2.5 M Tris-Cl, pH 8 oplossing / solution (1 Litre) EDTA, sodium salt (Mr = 380.2 g/mol) 10 % Sodium dodecyl sulfate solution Proteinase K solution (50 mg dissolved in 1 ml ddH2O)You need a digestion buffer consisting of the following: 15 mM NaCl 75 mM Tris-Cl, pH 8 16 mM EDTA, pH 8 0.8 % Sodium dodecyl sulfate 0.75 mg/ml proteinase KCalculate: How will you prepare 500 ml of the digestion buffer?
- What is the chemistry principle behind when (treatment: heavy cream) is subjected to room temperature? Why does beating time, stability (%drain) and volume foam (specific gravity) is important? see the data below Treatment (Heavy Cream) Beating Time (min) Stability (%drain) Volume of Foam (Specific Gravity) (Room Temperature) 20 No drain 0.94 Heavy Cream (chilled) 20 No drain 0.76 Heavy Cream with sugar and vanilla 20 No drain 0.88 Heavy Cream (over-whipped) 25 No drain 0.83What is the amount of dextrose in mg/kg/min provided by the following TPN for a 60 kg patient? Round to 1 decimal place, do not enter units Dextrose (70%) 320 g Amino acids (8.5%) 92 g Lipids (10%) 44 g sodium chloride 60 mEq sodium acetate 40 mEq Sodium phosphate 15 mmol potassium chloride 80 mEq potassium acetate 30 mEq calcium gluconate 18 mEq magnesium sulfate 8 mEq Multivitamins 10 mL Trace elements 1 mL Total volume: 2640 mL Rate: 110 mL/hrA buffer contains 0.015 mol of lactic acid (pK₁ = 3.86) and 0.080 mol of sodium lactate per liter. H₂C OH Lactic acid OH Calculate the pH of the buffer. H₂C. Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of the buffer. O OH Sodium lactate Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of pure water. O Na+ buffer pH: buffer pH change: water pH change: units units