Answer:
Explanation:
Total pressure = partial pressure of nitrogen + partial pressure of water vapour
partial pressure of water vapour = 18.7 mm of Hg
760 mm of Hg = 1 atm
18.7 mm of Hg = 18.7 / 760 atm
= .0246 atm
Total pressure = partial pressure of nitrogen + partial pressure of water vapour
Putting in the values in atm
1.72 atm = partial pressure of nitrogen + .0246 atm
partial pressure of nitrogen = 1.72 atm - .0246 atm
= 1.6954 atm
= 1.70 atm
partial pressure of nitrogen = 1.70 atm .
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Answer:
40:1 is the ratio of the magenta phenolphthalein concentration to the colorless phenolphthalein concentration.
Explanation:
To calculate the pH of acidic buffer, we use the equation given by Henderson Hasselbalch:
We are given:
= negative logarithm of acid dissociation constant of phenolphthalein = 9.40
= concentration of magenta phenolphthalein
= concentration of colorless phenolphthalein
pH = 11
Putting values in above equation, we get:
40:1 is the ratio of the magenta phenolphthalein concentration to the colorless phenolphthalein concentration.
Answer:
Overpopulation will strain current water resources to their limits, cause an increase in water pollution, and lead to an increase in civil and international conflicts over existing water supplies. ... Growths in regional and global population will also lead to increased cases of water pollution