12 moles of H₃PO₄
Explanation:
Given parameters:
Number of moles of P₄O₁₀ = 3moles
Unknown:
Number of moles of H₃PO₄ produced = ?
Solution:
This is a simple stoichiometric problem that would be solved by working from the known to the unknown substances.
The known is the number of moles of reacting P₄O₁₀.
We should establish how it relates with the unknown product and solve the problem.
P₄O₁₀ + 6H₂O → 4H₃PO₄
This is a balance equation;
From the equation;
1 mole of P₄O₁₀ will react completely to produce 4 moles of H₃PO₄
3 moles of P₄O₁₀ will produce 3 x 4 = 12 moles of H₃PO₄
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The chemical change can occur can be find if you mix the two solids in one direction
Answer:
- In general, polar solutes are most soluble in highly polar solvents.
Explanation:
The general rule is "like dissolves like" which means that <em>polar solvents </em>dissolve polar (or ionic) <em>solutes</em> and <em>non-polar solvents</em> dissolve non-polar solutes.
In order for a solvent dissolve a solute, the strength of the interacttion (force) between the solute and the solvent units (atoms, molecules, or ions) must be stronger than the strength of the forces that keep together he particles of the pure substances (known as intermolecular forces).
Since the nature of the interactions between the units are electrostatic, the more polar is the solvent the better it will be able to attract and surround the solute particles, keeping them separated and in solution. That mechanism explains why polar solutes will be most soluble in highly polar solvents.
Answer:
0.00552 mol/L
Explanation:
M(FeBr2) = 215.65 g/mol
59.5 mg = 0.0595 g FeBr2
0.0595 g * 1 mol/215.65 g = 0.0002759 mol FeBr2
FeBr2 ------ 2 Br-
1 mol ------ 2 mol
0.0002759 mol FeBr2 * 2 mol Br/1mol FeBr2 = 0.0005518 mol Br-.
100 mL = 0.1 L
0.0005518 mol Br-/ 0.1 L = 0.005518 mol/L≈ 0.00552 mol/L
× sodium ions in 2.11 mol of sodium carbonate.
<h3>
What is sodium carbonate?</h3>
The sodium carbonate, the inorganic substance with the formula, is also known as washing soda, soda ash, and soda crystals.
All of the forms are water-soluble, odourless, white salts that produce slightly alkaline solutions in water. In the past, it was recovered from the ashes of plants that were raised in soils high in salt.
The term "soda ash" originated to refer to sodium carbonate because the ashes of these sodium-rich plants were probably distinct from the wood ashes that were originally used to make potash. The Solvay technique is used to produce it in large amounts from limestone and sodium chloride.
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