Answer:
Clavulanic acid has two (2) chiral centers.
Explanation:
A chiral center is a center (usually carbon) with four different substituents.
The structure of clavulanic acid is shown in the attachment below.
Consider the labeled diagram in the attachment,
Carbon A is not a chiral carbon because it has two hydrogen atoms attached to it
Carbon B is not a chiral carbon because it has only three substituents
Carbon C is a chiral carbon because it has four different substituents
Carbon D is a chiral carbon because it has four different substituents
Carbon E is not a chiral carbon because it has only three atoms directly attached to it
Carbon F is not a chiral carbon because it has only three atoms directly attached to it
Carbon G is not a chiral carbon because it has two hydrogen atoms attached to it
Carbon H is not a chiral carbon because it has only three substituents
Then, only carbons C and D are chiral carbons.
Hence, clavulanic acid have two (2) chiral centers.
Answer:
<h2>D) clapping hands </h2>
Explanation:
hope it's helpful
Answer:
9.63 L.
Explanation:
Hello,
In this case, the undergoing chemical reaction is:
So the consumed amounts of hydrochloric acid and bromine are the same to the beginning based on:
In such a way, the yielded moles of hydrobromic acid and chlorine are:
Thus, the volume of the sample, after the reaction is the same as no change in the total moles is evidenced, that is 9.63L.
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Thw answer is PHj78 JJ CP30 R2D2
From the stoichiometry of the reaction, the mass of barium nitrate produced is 54.9 g.
<h3>Stoichiometry</h3>
The term stoichiometry refers to mass - volume relationships. Stoichiometry can be used to calculate the amount, mass or volume of reactants and products from the balanced reaction equation.
The equation of the reaction is written as follows;
BaCO3 + 2HNO3 ------> Ba(NO3)2 + CO2 + H2O
Number of moles of BaCO3 = 55 g/197.34 g/mol = 0.28 moles
Number of moles of HNO3 = 26 g/63.01 g/mol = 0.41 moles
From the reaction equation;
1 mole of BaCO3 reacts with 2 moles of HNO3
0.28 moles of BaCO3 reacts with 0.28 moles × 2 moles/1 mole = 0.56 moles
There is not enough HNO3 hence it is the limiting reactant.
Number of moles of Ba(NO3)2 produced is obtained from;
2 moles of HNO3 yields 1 mole of Ba(NO3)2
0.41 moles of HNO3 yields 0.41 moles × 1 mole/2 moles
= 0.21 moles of Ba(NO3)2
Mass of Ba(NO3)2 = 0.21 moles × 261.337 g/mol = 54.9 g
Learn more about stoichiometry: brainly.com/question/9743981
