What is the molar mass of the product formed when 1 mole of Mg reacts with 2 mol

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Question: What is the molar mass of the product formed when 1 mole of Mg reacts with 2 moles of HCl?

Options:

Correct Answer: 74.5 g

Solution:

Mg + 2HCl → MgCl2 + H2. Molar mass of MgCl2 = 24.3 + 2*35.5 = 95.3 g.

What is the molar mass of the product formed when 1 mole of Mg reacts with 2 moles of HCl?

What is the molar mass of the product formed when 1 mole of Mg reacts with 2 moles of HCl?

Step 1: Identify the reactants in the reaction. We have magnesium (Mg) and hydrochloric acid (HCl).
Step 2: Write the balanced chemical equation for the reaction. The equation is Mg + 2HCl → MgCl2 + H2.
Step 3: Identify the product formed in the reaction. The product is magnesium chloride (MgCl2).
Step 4: Calculate the molar mass of magnesium chloride (MgCl2).
Step 5: Find the molar mass of magnesium (Mg), which is 24.3 g/mol.
Step 6: Find the molar mass of chlorine (Cl), which is 35.5 g/mol.
Step 7: Since there are 2 chlorine atoms in MgCl2, multiply the molar mass of Cl by 2: 2 * 35.5 g/mol = 71.0 g/mol.
Step 8: Add the molar mass of magnesium and the total molar mass of chlorine: 24.3 g/mol + 71.0 g/mol = 95.3 g/mol.
Step 9: Conclude that the molar mass of the product MgCl2 is 95.3 g/mol.

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