<span>How do buffers work in the human body?
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Answer: b. how can we protect crops from drought
Explanation:
A scientific inquiry can be define as the fact finding inquiry in which query related to a scientific phenomena is answered by implementing a suitable scientific methodology.
Among the options given, b. how can we protect crops from drought is the correct option this is because of the fact that this can be answered by using suitable scientific experimental procedure. As drought is a natural phenomena it is expected to leave it's impact over the growth of crops as in drought crops may face scarcity of water which can limit the growth.
Answer:
The concentration of H3O+= 0.15M
Explanation:
From The equation of reaction
HClO2(aq) + H2O(l) ⇌ H3O+(aq) + ClO2−(aq)
0.25mol HClO2(aq) 0.25mol producesClO2−(aq) and x-mol of H3O+
Using Kc = [H3O+][ClO2-]/[HClO2]
0.15= 0.25*x/0.25
Simplify
x=0.15M
Answer:
Hypochlorous acid - Sodium hypochlorite
Explanation:
A buffer works when pH you want is ± 1 unit of pKa of the buffer. For example, for a buffer with pKa 7, it works between 6 and 8 (7-1 and 7+1).
pKa = -log Ka:
pKa boric acid - Sodium borate: 9.23. As you want a pH of 8.0. This buffer has a pKa too high.
pKa Hypochlorous acid - Sodium hypochlorite: 7.46. With this pKa, this buffer is a great choice to prepare it with a pH = 8.0
pKa Formic acid - Sodium formate: 3.74. This pKa is too low to make a buffer with pH = 8.0
Best choice is:
<h3>Hypochlorous acid - Sodium hypochlorite</h3>
Indicators because they indicate what the ph level of a substance is
