Blog

The mechanism of photophosphorylation is most similar to which of the following processes?

During anaerobic respiration 30-32 total ATP can be synthesized from one molecule of glucose.

What do troubadors/trobairitz and Tanburi Cemil Bey have in common? How is “Lucy in the Sky with Diamonds” different from music created for the courts of Aquitaine or the court of the sultan of the Ottoman Empire?

​A rectangle has an area of 18 cm. What is the perimeter if the length is 6 cm?  

As shown in the illustration, a starfish has the shape of a pentagon. Look at the illustration of the fruit. How many sides does this polygon have? ​   ​

Which of the following does not represent the concept of surface area? ​

Find the surface area of a cube with dimensions: s = 5.5 mm. ​

The area of a circle is 182 ft 2. Find its radius.  

A sample of solid sodium bicarbonate, NaHCO3,  is placed in a closed 1.0 L vessel at 398 K and allowed to decompose unil it reaches equilibrium according to the following equation:                                         2 NaHCO3 (s)   ⇌  Na2CO3(s) +  H2O (g)   +  CO (g)      Kp = 0.250 What is the partial pressure of CO (in atm)  at equilibrium?

Consider the reaction of elemental bromine with elemental chlorine to form a bromochloride compound at a given temperature:                                          Br2(g)  +  Cl2(g)   ⇌   2 BrCl(g)       KP = 81.0 A closed vessel is charged with 1.20 atm of Br2(g) and 1.20 atm of Cl2(g) initially and allowed to reach equilibrium. What is the partial pressure of the BrCl (in atm) at that equilibrium? Hint: BrCl has a coefficient of 2.