In the plasma membrane, the phospholipid molecules are oriented so that the heads are facing the outside environment and the of the membrane. tails are facing the interior A) hydrophilic, hydrophobicB) ectothermic, endothermicC) heterotrophic, autotrophicD) autotrophic, heterotrophicE) hydrophobic, hydrophilic The Correct Answer and Explanation is : Correct Answer: A) hydrophilic, hydrophobic Explanation: The plasma membrane […]

Calculate the Kb for the base C2H5NH2 if the Ka for the corresponding acid is 1.8 x 10-11 Determine the [OH-], [H3O +], and the pH of a solution that has a pOH of 9.50. The pH of 0.10 M formic acid, HCOOH, is 2.39. What is the Ka of this acid? What is the

Prove that: Ka * Kb = Kw and pKa + pKb = 14 Using the equations below. ?? = [HA][OH-] b[A AT1 2H20 -H30+ + OH- The Correct Answer and Explanation is : To prove Ka⋅Kb=KwK_a \cdot K_b = K_w and pKa+pKb=14pK_a + pK_b = 14, let’s use the following information and equations: Derivation of

Complete the molecular orbital diagram for NF, nitrogen monofluoride below. Electrons can be added to the orbitals by clicking the orbital. Additional clicks will change the occupation of the orbital. Be sure to fill in both the atomic and molecular orbitals. Note: atomic orbitals are not shown. The Correct Answer and Explanation is : To

Use molecular orbital theory to complete the ground state electron configuration for each of the molecules. Molecule Ground state electron configuration NF (σ1s)(σ1s)(σ2s)(σ2s)(π2p)(σ2p)(π2p*) NF+ (σ1s)(σ1s)(σ2s)(σ2s)(π2p)(σ2p)(π2p*) NF− (σ1s)(σ1s)(σ2s)(σ2s)(π2p)(σ2p)(π2p*) Answer Bank 0 1 2 3 4 Determine the bond order of each of the molecules. NF bond order: NF+ bond order: NF− bond order: Classify each molecule

When must the sanitizing step occur when cleaning and sanitizing in a threecompartment sink? a. After rinsining b. Before cleaning c. After air-drying d. Before removing food The Correct Answer and Explanation is : The correct answer is: a. After rinsing Explanation: In a three-compartment sink, the proper sequence of cleaning and sanitizing involves several

Hahn Manufacturing purchases a key component of one of its products from a local supplier. The current pur­chase price is $1.500 per unit. Efforts to standardize parts succeeded to the point that this same component can now be used in five different products. Annual compo­nent usage should increase from 150 to 750 units. Management wonders

An expensive vacuum system can achieve a pressure as low as 1.00×10 – 7 N/m2 at 20ºC . How many atoms are there in a cubic centimeter at this pressure and temperature? The Correct Answer and Explanation is : To calculate the number of atoms in a cubic centimeter at a given pressure and temperature,

Which of the following is a disadvantage for telecommuting for employees? Excessive telework hours Greater autonomy Fewer unproductive meetings Greater flexibility The Correct Answer and Explanation is : The correct answer is “Excessive telework hours.” Explanation: Telecommuting, or working remotely, has become increasingly popular due to its numerous benefits, including greater flexibility, fewer unproductive meetings,

Telecommuting is considered an employee benefit because Multiple Choice telecommuters can set their own working hours and vacation schedules. not commuting to work adds flexibility to telecommuters’ schedules. organizations make fewer demands on employees who telecommute. telecommuting is normally offered only to upper managers and executives. The Correct Answer and Explanation is : The correct