H2 (g) +Cl2 (g) -> 2HCl (g)
how many molecules of HCl are produced from 100 g Cl2 ?
mols Cl2 = grams/molar mass = 1.00/71 = ?
mols HCl produced = mols Cl2 x 2 (from the coefficients)
Then you know mols HCl x 6.022E23 molecules/mol = ?
To determine the number of molecules of HCl produced from 100 g of Cl2, you need to use the concept of molar mass and stoichiometry.
1. Start by calculating the number of moles of Cl2 using its molar mass. The molar mass of Cl2 is approximately 70.91 g/mol.
Number of moles = Mass of Cl2 / Molar mass of Cl2
Number of moles = 100 g / 70.91 g/mol
2. Calculate the ratio between Cl2 and HCl using the balanced equation: 1 mole of Cl2 produces 2 moles of HCl.
3. Multiply the number of moles of Cl2 by the stoichiometric ratio to find the number of moles of HCl produced.
Number of moles of HCl = Number of moles of Cl2 × (2 moles HCl / 1 mole Cl2)
4. Finally, convert the number of moles of HCl to the number of molecules using Avogadro's number, which is approximately 6.022 × 10^23 molecules/mol.
Number of molecules of HCl = Number of moles of HCl × Avogadro's number
By following these steps, you can calculate the number of molecules of HCl produced from 100 g of Cl2.
To determine the number of molecules of HCl produced from 100 g of Cl2, we need to follow these steps:
Step 1: Calculate the number of moles of Cl2.
To do this, we need to use the molar mass of Cl2, which is 2 * 35.45 g/mol = 70.90 g/mol.
Number of moles of Cl2 = Mass of Cl2 / Molar mass of Cl2
Number of moles of Cl2 = 100 g / 70.90 g/mol = 1.41 mol
Step 2: Determine the stoichiometry of the reaction.
According to the given balanced equation, 1 molecule of Cl2 reacts with 1 molecule of H2 to produce 2 molecules of HCl.
Step 3: Calculate the number of moles of HCl produced.
Since the stoichiometric ratio is 2:1 for HCl to Cl2, the number of moles of HCl produced will be twice the moles of Cl2.
Number of moles of HCl produced = 2 * Number of moles of Cl2
Number of moles of HCl produced = 2 * 1.41 mol = 2.82 mol
Step 4: Calculate the number of molecules of HCl produced.
To convert the number of moles to molecules, we use Avogadro's number.
1 mole of any substance contains 6.022 × 10^23 molecules (Avogadro's number).
Number of molecules of HCl produced = Number of moles of HCl produced × Avogadro's number
Number of molecules of HCl produced = 2.82 mol × 6.022 × 10^23 molecules/mol = 1.70 × 10^24 molecules
Therefore, 100 g of Cl2 will produce approximately 1.70 × 10^24 molecules of HCl.