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23 mar 2020 · Answer: We need 0.68 moles of aluminium ions to be present to make 0.34 moles Al2 (SO4)3. Explanation: Step 1: Data given. Number of moles Al2 (SO4)3 = 0.34 moles. Step 2: The balanced equation. 2Al + 3H2SO4 = Al2 (SO4)3 + 3H2. Step 3: Calculate the number of moles aluminium ions.
7 lut 2024 · Since each formula unit of Al₂(SO₄)₃ contains 2 moles of aluminum ions (Al³⁺), we can calculate this by simply multiplying the number of moles of Al₂(SO₄)₃ by 2, the number of Al³⁺ ions per formula unit. The calculation will be: 0.34 moles of Al₂(SO₄)₃ × 2 mol Al³⁺/mol of Al₂(SO₄)₃ = 0.68 moles of Al³⁺.
12 lis 2023 · Based on the formula Al₂ (SO₄)₃, it can be seen that two moles of Al³⁺ ions are contained in one mole of Al₂ (SO₄)₃. Therefore, by simple multiplication, in 0.30 mol of Al₂ (SO₄)₃, there would be: 0.30 mol * 2 = 0.60 mol of Al³⁺ ions.
Question: How many moles of aluminum ions are present in 0.34 moles of Al2 (SO4)3? Express the number of moles to two significant figures. Show transcribed image text. Here’s the best way to solve it. Solution. 100% (2 ratings) View the full answer. Previous question Next question. Transcribed image text:
30 sty 2024 · Moles allow you to directly read weight from the periodic table (e.g., 1 mole of N₂ is 28 g or 1 mole of NaCl is 58.5 g). We can link the number of entities X in a specified sample – N(X), to the moles of X in the same sample – n(X), with the relation: n(X) = N(X)/NA .
In stoichiometric calculations, this is usually the known amount (in grams or moles) of at least one reactant or product. To convert between moles and grams, multiply moles by the molar mass to get grams, or divide grams by the molar mass to get moles.
To calculate the number of moles of an element use the formula: n = m/M, where m is the Mass of the element, and M is the Molecular weight. How much is 1 mole to grams? The mass of one mole of a substance is equal to its molar mass in grams. What is Avogadro's number?
