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Human urine has a normal pH of 6.2. If a person eliminates an average of 1226 mL of urine per day, how many H+ ions are eliminated per week?
explain the biochemical changes that takes place during the investment phase of glycolysis
A buffer solution is prepared by mixing enough acetic acid and potassium acetate to give 500ml of a solution that is 0.500 M acetic acid and 0.500 M potassium acetate. What is the pH of this buffer
When 9.64x10-4 moles of this complex is dissolved into 425.0 mL of the water, you find that 19.22 mL of 0.1000 M HCl is needed to reach a titration endpoint. What is the final formula
If 3.30ml of vinegar needs 45.0ml of 0.130M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.10qt sample of this vinegar?
Compare and contrast the steps of fatty acid oxidation and synthesis. Explain what ketone bodies are and why they build up in diabetes. What's the metabolic outcome
Describe how redox titrations are carried out and draw a labeled sketch of a typical redox titration curve.
Write the equalities and conversion factor to complete the following problems. Use scientific notation and the correct number of significant figures. 6.3 x 10-6 uL=______________L (ten power to the negetive six)
Calculate the mass of Sodium Nitrate required to prepare 50cm3 of 0.2 moll-1 solution
A solution of a dye in a 0.80 cm cuvette of concentration 1.25 x 10^-3 M had an absorbance of 0.115 at a particular wavelength. What was the molar absorptivity of the dye
Find the pH during the titration of 20.00 mL of 0.1760 M butanoic acid, CH3CH2CH2COOH (Ka = 1.54 10-5), with 0.1760 M NaOH solution after the following additions of titrant.
A solution of a specific vitamin has ?max = 251nm and a concentration of 4.79x10^-7M. The absorbance of the solution at 251 nm is A = 0.175. What is the molar absorptivity of the vitamin at 251nm
a sodium hypoclorite liquid bleach is placed in a 250 mL volumetric flask and diluted to the mark. A 25.00 mL aliquot of this solution is placed in a 250 mL Erlenmeyer flask. What volume of the original liquid bleach is in the Erlenmeyer flask?
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