Answer to Question #113567 in General Chemistry for jeff

Question

The optimum pH for hydrangea flowering plant is around a pH of 6.35. What is the best solution that can be used as a buffer for this type of plant. Show calculations to support your choice.











b) You wish to now make this buffer solution. You would like to make a 1.25M buffer solution chosen from part (a). Identify the salt that you could mix into the weakly acidic solution to form this buffer. Write the balanced equation for this buffer.

Salt Solution to be added: ______________________________

Balanced Equation of Buffer Solution: _______________________________________________________

c) Calculate the pH of the resulting buffer once 0.25M of NH3, has been introduced to the soil.













d) Calculate the resulting pH to the buffer once 0.21M of HBr has been introduced to the soil.

Answer 1

In fact, a hydrangea can have different bloom colors on the same bush if the roots of the plant sample soils of differing pH.