Calculate the number of grams of the product H2O that form. Be sure your answer has the correct number of significant figures.
To calculate the number of grams of H2O produced, we need to consider the balanced chemical equation.
From the chemical equation:
2H2 + O2 -> 2H2O
We can see that 2 moles of H2 produce 2 moles of H2O.
Given that 4.00 moles of H2 is reacted, we can use this information to calculate the moles of H2O produced.
4.00 moles H2 * (2 moles H2O / 2 moles H2) = 4.00 moles H2O
To convert moles of H2O to grams of H2O, we need to use the molar mass of H2O, which is 18.015 g/mol.
4.00 moles H2O * 18.015 g/mol = 72.06 grams
Therefore, the number of grams of H2O that form is 72.06 grams, with 4 significant figures.