A buffer is prepared by adding 23.0 g of sodium acetate (CH3COONa) to 490 mL of a 0.160 M acetic acid (CH3COOH) solution. Part A) Determine the pH of the buffer.
Part B) Write the complete ionic equation for the reaction that occurs when a few drops of hydrochloric acid are added to the buffer.
Part C) Write the complete ionic equation for the reaction that occurs when a few drops of sodium hydroxide solution are added to the buffer.
Please help with explanation. Thank you so much

може ли да зареждате повече информация, моля

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.