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A 1 liter solution is made by adding 0.6209 moles NaH2PO4 and 0.8581 moles Na2HPO4. What will be the final pH of this solution after addition of 1. 9717 ml of 3. 8914 molar HCl? The pka of sodium dihydrogen phosphate is 6.86.
A beaker contains a total concentration of 0.42 molar of weak acetic acid with pka = 2.21 and pH = 4.69. Calculate the percent of the undissociated form. Calculate answer to three decimal places, do not specify units in the answer.
- How can you contribute to the conservation and restoration of the environment?
A beaker contains a total concentration of 0 62 molar of weak acetic acid with pka = 3.97 and pH = 2.22. Calculate the molar concentration of the undissociated (AH) form. Calculate the answer to three decimal places, do not specify units in the answer.
What is the pH of a solution with a OH- concentration of 0.000810820000 molar? Calculate answer to two decimal places, do not specify units in the answer.
Seed characteristics that influence germination
Describe the characteristic of rainforest and alpine biome? (2 pages long, as a presentation)
Explain the difference between colonisation, infection and disease
1. Describe the location of the clinically important arterial pressure points and explain how it could be useful in giving first aid treatments.
2. What are the precautions should be taken in applying pressure at an arterial pressure point?
TRUE or FALSE Evenly spaced distribution may result from tendencies to form social groups, clustered resources, or spatial proximity of parents and offsprings
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#339914 on Dec 2023