An unknown compound contains only carbon, hydrogen, and oxygen (C?H?O?). Combustion of 6.50 of this compound produced 9.53 g of carbon dioxide and 3.90 g of water.
1) How many moles of Carbon?
2) How many moles of Hydrogen?
6.5 grams sorry.
To determine the number of moles of carbon and hydrogen in the unknown compound, we need to first calculate the number of moles of carbon dioxide and water produced during combustion.
1) Moles of Carbon:
To find the number of moles of carbon, we use the molar mass of carbon dioxide. The molar mass of carbon dioxide (CO2) is 12.01 g/mol for carbon + 2 * 16.00 g/mol for oxygen = 44.01 g/mol.
moles of CO2 = mass of CO2 (g) / molar mass of CO2 (g/mol)
moles of CO2 = 9.53 g / 44.01 g/mol
2) Moles of Hydrogen:
Similarly, to find the number of moles of hydrogen, we use the molar mass of water. The molar mass of water (H2O) is 2 * 1.01 g/mol for hydrogen + 16.00 g/mol for oxygen = 18.02 g/mol.
moles of H2O = mass of H2O (g) / molar mass of H2O (g/mol)
moles of H2O = 3.90 g / 18.02 g/mol
Now, we need to determine the mole ratio between carbon dioxide and carbon, as well as the mole ratio between water and hydrogen.
The balanced chemical equation for the combustion of the unknown compound can provide us with this information. Unfortunately, we don't have the chemical formula of the unknown compound, so we cannot determine the exact ratios.
However, we can assume that the combustion reaction is complete, meaning that all the carbon in the unknown compound ends up in carbon dioxide (CO2) and all the hydrogen in the unknown compound ends up in water (H2O). By making this assumption, we can infer that the mole ratios between the unknown compound and carbon dioxide, as well as between the unknown compound and water, are 1:1.
Therefore, the number of moles of carbon is the same as the number of moles of carbon dioxide, and the number of moles of hydrogen is the same as the number of moles of water.
moles of Carbon = moles of CO2
moles of Hydrogen = moles of H2O
By substituting the calculated values:
moles of Carbon = 9.53 g / 44.01 g/mol
moles of Hydrogen = 3.90 g / 18.02 g/mol
Now you can calculate the exact values.
Wats the answer
6.50 WHAT? grams?
3.90 g H2O x (1 mol H2O/18 g H2O) x (2 mols H atoms/1 mol H2O) = ? mol H atoms.
Carbon is done the same way.