What is the atmoic number for potassium?
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Ответ:
19
Explanation:
Ответ:
0.668 g of barium sulfate
Explanation:
Given,
Balanced chemical equation: BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl.
Volume of BaCl₂ = 25.34 mL x
= 0.02534 L.
Molarity of BaCl₂ = 0.113 M
Molarilty =![\frac{moles of solute}{L of the solution }](/tpl/images/0112/0881/26766.png)
Moles of solute = Molarilty x L of the solution
Moles of BaCl₂ = 0.113 M x 0.02534 L = 0.00286 mol.
From the balanced chemical equation there is a 1:1 molar ratio between BaCl₂ and BaSO₄
Therefore, moles of BaCl₂ = moles of BaSO₄
Moles of BaSO₄ = 0.00286 mol.
Mass of BaSO₄ = moles of BaSO₄ x Molar mass of BaSO₄
Mass of BaSO₄ = 0.00286 mol x 233.4 g/mol.
Mass of BaSO₄ = 0.668 g.