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- The electrical resistance of a column of 0.05 M NaOH solution of diameter 1 cm and length 50 cm is 5.55 × 103 ohm. Calculate its resistivity, conductivity and molar conductivity.1. What is the MW of the analyte?2. What is the meq of the analyte?3. What will be the weight (in grams) of the analyte if the standardization is to be quartered?4. What will be Normality of the solution if 7.5ml of the titrant was consumed in the standardization?5. What is the average Normality if two or more trials were conducted with the values of 0.102N and 0.105N?Missing molar conductivity Given: Conductivity: 281 us x cm^-1 (microseconds/cm) Concentration of solution: 0.05555555556 M (mol/lit) Basically, molar conductivity = conductivity/concentration, but what I'm not sure of is the proper unit for the answer molar conductivity and if it will require the given conductivity to be converted to seconds and meter (or not? I'm not sure cause i've been seeing S⋅m2⋅mol−1 in the internet as the unit for molar conductivity)
- 2 what is the purpose of BSC Level 1 & 2, proper layout, performance, and its application in biosafety assessmentFor relative strength, it is 1 being the highest and 3 being the lowestAn unknown food-dye is analyzed by the method used in this experiment. The absorbance of 5 standard solutions is plotted vs. their concentration (molarity) and a straight line is obtained with the formula: Abs = 4.850x + 0 An unknown food-dye soluton is diluted and it's absorbance is found to be 0.55. What is the molarity of the diluted unknown?
- A conductance cell filled with 0.01 M solution of an electrolyte offered a resistance of 2300 ohms. If the electrodes of the cell are 1.90 cm apart and have an area of cross-section equal to 4.70 sq cm, calculate specific conductance1. What is the MW of the analyte?2. What is the meq of the analyte?3. What is the weight (in grams) of the analyte?4. What will be the percentage purity of the sample if 43mL of the titrant was consumed?5. Did the sample conform to the USP requirement? Yes or No?When using a multimeter as a conductivity meter, what are the units used?
- I have one question : Find the A and T% of a 6.5X10-4 Mol L-1 solution of a drug ( molecular weigth 200 ) whose absorpitvity is 0.026 L cm-1 g-1 at 520 nm when measured in a cell of 2.00 cm pathlength ?An unknown food-dye is analyzed by the method used in this experiment. The absorbance of 5 standard solutions is plotted vs. their concentration (molarity) and a straight line is obtained with the formula: Abs = 3.350x +0.08 An unknown food-dye soluton is diluted and it's absorbance is found to be 0.50. What is the molarity of the diluted unknown, to two significant figures?Why High quality deionized water is very resistive and merely conduct electricity (0.5 mS/cm) at 25 oC.? Why Conductivity of a typical drinking water is in the range of (200 to 800) mS/cm at 25 oC?