The pH of a 1.25 x10-3 M NAOH solution is: O a 7 b 2.90 3.10 O d 11.10 O e 10.90

Draw titration curve for compound X when NaOH equivalence(s) is/are added. Indicate the buffering region(s) with a box.

How many moles of Nal would be found in 250mL of a 4.5 M solution? Write your answer with three digits beyond the decimal point (IMPORTANT - zeroes count as a digit) The answer is moles

A concentrated lidocaine solution contains lidocaine 1 g/5 mL. How many milliliters of this injection should be used to prepare a 500 mL IV infusion containing 8 mg/mL of lidocaine in D5W? Do not round.

5

How many moles of HCl are there in 75.0 mL of 0.160 M HCl?

Calculate the pH of the resulting solution if 23.0 mL of 0.230 M HCl(aq) is added to 33.0 mL of 0.230 M NaOH(aq). pH = Calculate the pH of the resulting solution if 23.0 mL of 0.230 M HCl(aq) is added to 13.0 mL of 0.330 M NaOH(aq). pH=

pH 3.5 4.5 5.5 6.5 7.5 8.5 Absorbance 0.098 0.027 0.068 0.028 0.032 0.054 Concentration in diluted supernatant (mg/ml) 0.196 0.054 0.136 0.0056 0.0064 0.0108 Concentration in undiluted supernatant (mg/ml) 0.98 0.27 0.68 0.28 0.32 0.54 % solubility             Formula for % solubility of proteins: % solubility = [(C x V x F) / (1000 x 35%)] x 100% C = concentration (mg/ml); F = dilution factor; V = volume of solution (ml) Calculate the % solubility of protein in the soy flour (Assume the soy flour contains 35% protein (w/w))

A polymer is made with the following fractional distribution. 0.5 20 Wi Mi (kg/mol) 0.4 40 0.1 30 a) Calculate M₁, Mw, and PI for this polymer.

How many liters of a 7 M NaOH stock solution would you need to make 780 mL of a 153 mM NaOH dilution? (m.w. = 40.00 g/mol)