Answer:The dissociation constant of a weak acid is 4.9 ~ 10-8 , its percentage ionization at 0.1 M is ( a ) ... The pH of a 0.1 M aqueous solution of a weak acid ( HA ) is 3.
Explanation:acid. Ka acetic acid = 1.8χ10–5. (b) A buffer solution is prepared by adding 0.10 liter of 2.0 ... Compute the hydrogen ion concentration of the buffer solution.
The acceleration is defined as the ratio between the change in speed and the change in time (i.e. the time elapsed to perform the speed change).
In this case, the reference to the "starting block" hints that the initial speed is 0, and the final speed is 8 m/s. This means that the change in speed is 8-0=8 m/s.
We are given that this change in speed takes place in 4 seconds.
So, the acceleration is the ratio between the change in speed and the time elapsed: 8/4=2m/s^2
Temperatures in the central pacific ocean are warmer than usual and there is less rainfall. hope this helps! :)
Answer:
Carbon is found in the biosphere stored in plants and trees. Plants use carbon dioxide from the atmosphere to make the building blocks of food during photosynthesis. Carbon is found in the hydrosphere dissolved in ocean water and lakes. Carbon is used by many organisms to produce shells.