Answer:
The density of tube A is greater then the density of tube B having more mass inside of the smaller area.
Explanation:
Answer: H₂SO₄ is the chemical formula that represents sulfuric acid.
Explanation:
1) H stands for hydrogen and H₂ means that each unit contains two atoms of hydrogen.
2) S stands for sulfur. Since there is not subscript, means each unit contains one atom of sulfur.
3) O stands for oxygen, and O₄ means that each unit has four oxygen atoms.
4) The way the compound is build up is the S atom at the center with two double bonds to each to one atom of O, and two single bonds one to each OH ion.
5) Sulfuric acid is a strong acid, so it dissociates in water and alghough the formula H₂SO₄ is used to represent it, the aqueous solution is formed by ions: HSO₃⁻, H⁺, SO₄²⁻, and OH⁻, as represented by these dissociation equaitons show:
1) H₂SO₄ ⇄H⁺ + HSO₄⁻ first dissociation
2) HSO₄⁻ ⇄ H⁺ + SO₄²⁻ second dissociation
So, H₂SO₄ is one form to represent sulfuric acid.
To determine the percentage yield, do the following:
- Write the balance equation
- Determine the limiting reactant
- Calculate the theoretical yield
- Calculate the percentage yield (Option A)
<h3>What is stoichiometry?</h3>
Stoichiometry simply defined the relationships of the various quantities as they react in a chemical reaction
Scientist are mostly inquisitive and as such may want to determine the percentage yield of a reaction even before carrying it out.
<h3>How to determine the percentage yield</h3>
To determine the percentage for a given reaction, we must set up the following:
- Write the balance equation
- Determine the limiting reactant
- Calculate the theoretical yield
- Calculate the percentage yield
From the above, we can conclude that option A gives the right steps if we must successfully determine the percentage yield of a reaction.
Learn more about stoichiometry:
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