Answer:
A: pH = 3.74
B: pH = 5.74
C: pH = 4.74
Explanation:
According to the Henderson-Hasselbach equation for buffers, we know that . Firstly, let's find the value:
Now, for buffer A:
This means:
Similarly, for buffer B:
This means:
Similarly, for buffer C:
This means:
A) Negative
b) Negative
c) Positive
d) 0
e) Positive
The origin of heat transfer is the conversion of potential energy of the egg to heat energy.
Answer:
D
Explanation:
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The balanced chemical reaction is written as:
Sb2S3 + 6HCl = 6SbCl<span>3 + 3H2S
We are given the amount of </span><span>antimony(III) sulfide to be used in the reaction. This is amount will be used for the calculations. We do as follows:
2.85 g Sb2S3 ( 1 mol / </span><span>339.715 g ) ( 6 mol SbCl3 / 1 mol Sb2S3 ) (</span> 228.13 g / mol ) = 11.48 g SbCl3