2Na + 2H2O > 2NaOH + H2
How do i plug in the masses into this equation. or How do i find the mass relationship
Look them up on the periodic table.
Na is 23 so 2 x 23 = 46 etc.
ЕгфА
To find the mass relationship in a balanced chemical equation, you need to determine the molar masses of the compounds involved and use stoichiometry.
Here are the steps to follow:
1. Write down the balanced chemical equation. In this case, it is:
2Na + 2H2O -> 2NaOH + H2
2. Determine the molar masses of the compounds involved. The molar mass is the mass of one mole of a substance. The molar mass can be found by adding up the atomic masses of the elements in the compound. For example:
- Sodium (Na) has a molar mass of 22.99 g/mol.
- Water (H2O) has a molar mass of 18.02 g/mol.
- Sodium hydroxide (NaOH) has a molar mass of 39.997 g/mol.
- Hydrogen gas (H2) has a molar mass of 2.02 g/mol.
3. Determine the number of moles of each compound. Divide the given mass of each compound by its molar mass. For example, if you have 10 g of Na, divide it by 22.99 g/mol to get the number of moles.
4. Use the balanced equation to determine the mole-to-mole ratio. From the balanced equation, you can see that 2 moles of Na react with 2 moles of H2O to produce 2 moles of NaOH and 1 mole of H2.
5. Use the mole-to-mole ratio to calculate the desired mass relationship. Multiply the number of moles of one compound by the molar mass of another compound, using the mole-to-mole ratio from the balanced equation. For example, if you have the number of moles of Na, you can multiply it by 39.997 g/mol (the molar mass of NaOH) to find the mass of NaOH produced.
By following these steps, you can determine the mass relationship between the different compounds in the balanced chemical equation.