The following graph shows the kinetics curves for the reaction of oxygen with hydrogen to form water:

O2(g) + 2H2(g) → 2H2O(g). Which curve is hydrogen?

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#Question id: 358

#Section 4: Fundamentals of Biological Engineering

Consider the following reaction at equilibrium: CO2 + H2O ⇔ H2CO3. What would be the effect of adding additional H2O?

TLS Online TPP Program

#Question id: 359

#Section 4: Fundamentals of Biological Engineering

What is the concentration of OH− in a solution with an H+ concentration of 1.3 × 10^−4 M?

TLS Online TPP Program

#Question id: 360

#Section 4: Fundamentals of Biological Engineering

Which of the following is considered to be a strong base (alkali)?

TLS Online TPP Program

#Question id: 361

#Section 4: Fundamentals of Biological Engineering

Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.

TLS Online TPP Program

#Question id: 362

#Section 4: Fundamentals of Biological Engineering

A 0.01 M solution of a substance has a pH of 2. What can you conclude about this substance?

TLS Online TPP Program

#Question id: 363

#Section 4: Fundamentals of Biological Engineering

What is the pH of a mixture of 0.042 M NaH2PO4 and 0.058 M Na2HPO4? If 1.0 mL of 10.0 M NaOH is added to a liter of the buffer prepared, how much will the pH change? (pKa = 6.86)