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tatuchka [14]
3 years ago
9

THIS HAS NOTHING TO DO WITH SCHOOL.

Chemistry
2 answers:
klio [65]3 years ago
5 0

OMG yessss that is so cute she will totally accept

barxatty [35]3 years ago
3 0

Sounds great but, you're

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Natalija [7]

Answer:

Ur answer is B. I, II, and III

Explanation:

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7 0
2 years ago
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You wish to prepare an HC2H3O2 buffer with a pH of 4.24. If the pKa of is 4.74, what ratio of C2H3O2 /HC2H3O2 must you use?
LenaWriter [7]

To solve this problem, we can use the Henderson-Hasselbalch Equation which relates the pH to the measure of acidity pKa. The equation is given as:<span>

<span>pH = pKa + log ([base]/[acid])                ---> 1</span></span>

Where,

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<span>[acid] = concentration of  HC2H3O2 in molarity or moles</span>

 

For the sake of easy calculation, let us assume that:

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<span>
Therefore using equation 1,
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x = 1.65<span>

The required ratio of C2H3O2 /HC2H3O2 <span>is 1:1.65 or 3:5. </span></span>
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3 years ago
Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction o
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