what is the new concentration of A if 7.7 ml of a .10 M solution of A is mixed with 18.3 mL of .20 M solution B and an additiona
1 answer:
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Total number of atoms = 5
<h3>Further explanation </h3>The formula of a compound shows the composition of the constituent elements
CaCO₃ is composed of 3 types of atoms, namely Ca, C and O
The amounts of each of these atoms in the compound CaCO₃:
- Ca = 1
- C = 1
- O = 3
Then total number of atoms :
Answer:
b. 1.5 atm.
Explanation:
Hello!
In this case, since the undergoing chemical reaction suggests that two moles of A react with one moles of B to produce two moles of C, for the final pressure we can write:
Now, if we introduce the stoichiometry, and the change in the pressure we can write:
Nevertheless, since the reaction goes to completion, all A is consumed and there is a leftover of B, and that consumed A is:
Thus, the final pressure is:
Therefore the answer is b. 1.5 atm.
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