<u>Answer:</u> The correct answer is 1.18 g.
<u>Explanation:</u>
We are given a chemical equation:
We know that at STP conditions:
22.4L of volume is occupied by 1 mole of a gas.
So, 2.21L of carbon dioxide is occupied by = of carbon dioxide gas.
By Stoichiometry of the above reaction:
1 mole of carbon dioxide gas is produced by 1 mole of carbon
So, 0.0986 moles of carbon dioxide is produced by = of carbon.
Now, to calculate the mass of carbon, we use the equation:
Moles of carbon = 0.0986 mol
Molar mass of carbon = 12 g/mol
Putting values in above equation, we get:
Hence, the correct answer is 1.18 g.
Idk cause I’m not completely sure I apologize
Answer:
14.14
If you round it I'm guessing it would be 14.
Good luck <3
HI and I⁻ is the acid-conjugate base pair.
<h3>What is acid and conjugate base pair?</h3>
According to Bronsted-Lowry definition of acid and base, those pair which are differ in the single no. of proton or H⁺ ion is known as acid and conjugate base pair or base and conjugate acid pair.
Given chemical reaction is:
HI + H₂O → H₃O⁺ + I⁻
Here, HI = acid,
H₂O = base,
H₃O⁺ = conjugate acid and
I⁻ = conjugate base
Hence, option (d) is correct i.e. HI & I⁻ is the acid-conjugate base pair.
To know more about the acid-conjugate base pair, visit the below link:
brainly.com/question/14971866