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- Calculate the enthalpy of vaporization at the normal boiling point (760 mmHg) of the liquid(water, boiling point of 100 celsius).How many ml 2M NaOH would it take to neutralize 20 ml of 0.5M HCI?i) 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
- Compute for the sodium concentration of the patient. Use the same formula in the computation of the concentration using absorbance and concentration of the standard. Given: Standard sample Concentration : 150mmol/L Absorbance: 0.112 Patient's sample Absorbance : 0.226 Concentration : ??What is happening in this trace? What do the peaks represent? Why is absorbance measured at 230 nm?You record the absorbance of your unknown BSA sample at 0.276. What is the concentration in ug/mL of the unknown assuming you have a standard curve with the line of best fit with y=0.0001x+0.0038 as its equation
- A calibration curve for the absorbance of an unknown is shown below. What would be the concentration of a sample with absorbance of 0.45. Give the answer with the correct unit.It takes 175ml of 0.75 M H2SO4 to completely neutralize 285 ml of NaOH. What is the concentration of the NaOH solution?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 0.546