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wilneishawatkins
11.06.2020 •
Chemistry
Calculating pH
DETERMINE THE PH OF EACH SOLUTION
» [H] = 1 x 10-9M
pH =
» POH = 3
pH =
» [OH ) = 1 x 10-2 M
pH =
» POH = 7
pH =
Solved
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Ответ:
The answer to your question is given below
Explanation:
1. Data obtained from the question include:
Hydrogen ion concentration, [H+] = 1x10^-9M
pH =..?
pH = - log [H+]
pH = - log 1x10^-9
pH = 9
2. Data obtained from the question include:
pOH = 3
pH =.?
Recall:
pH + pOH = 14
pH + 3 = 14
Collect like terms
pH = 14 - 3
pH = 11
3. Data obtained from the question include:
Hydroxide ion concentration, [OH-] = 1x10^-2M
pH =..?
First, we shall determine the pOH. This is illustrated below
pOH = - Log [OH-]
pOH = - Log 1x10^-2
pOH = 2
Finally, we can obtain the pH as follow:
pH + pOH = 14
pOH = 2
pH + 2 = 14
Collect like terms
pH = 14 - 2
pH = 12
4. Data obtained from the question include:
pOH = 7
pH =.?
Recall:
pH + pOH = 14
pH + 7 = 14
Collect like terms
pH = 14 - 7
pH = 7
Ответ:
Criteria for the implementation of drinking water:
where drinking water comes from and its qualitytechnical interventionhygiene education for communityregulations, laws and managementsroutine water sampling and analysisLimitations:
availability of resources (human, finance, equipment)geographical conditionsclimatological conditionscommunity and authority and transport infrastructureExplanation:
For more information:
https://www.who.int/water_sanitation_health/dwq/gdwqvol32ed.pdf?ua=1https://www3.epa.gov/region1/eco/drinkwater/your_drinkwater_source.html