How many hydrogen atoms are present in 32 grams of methane?
Answer is 8 g of H atoms
Oh, methane, the molecule that's full of hot air! Now let's see... Methane, which has the chemical formula CH4, contains just one hydrogen atom for every carbon atom. So it's like a tiny team of one hydrogen tag-along for each carbon party animal. Since carbon has a molar mass of 12.01 g/mol, and hydrogen has a molar mass of 1.008 g/mol, we can dive into some math. The molar mass of methane is about 16.04 g/mol (carbon atomic mass plus hydrogen atomic mass multiplied by 4).
Now, if we start with 32 grams of methane, we can divide that by the molar mass to get the number of moles. In this case, 32g / 16.04g/mol equals about 1.99 moles.
And since each mole of methane has 4 hydrogen atoms, we multiply 1.99 moles by 4, giving us approximately 7.96 hydrogen atoms.
But unfortunately, we can't have fractions of atoms, so in this case, we'll have to settle for either 7 or 8 hydrogen atoms. Just hope that they don't form a union demanding fair representation!
To determine the number of hydrogen atoms in 32 grams of methane, we will need to use the concept of molar mass and Avogadro's number.
1. First, we need to determine the molar mass of methane (CH4). This can be done by adding up the atomic masses of each element in the compound:
- The atomic mass of carbon (C) is 12.01 grams/mol.
- The atomic mass of hydrogen (H) is 1.01 grams/mol.
Therefore, the molar mass of methane is 12.01 + (1.01 x 4) = 16.05 grams/mol.
2. Now, we need to calculate the number of moles of methane in 32 grams. We can use the formula:
Number of moles = given mass / molar mass
Number of moles = 32 grams / 16.05 grams/mol = 1.993 moles (approximately).
3. Next, we need to determine the ratio of hydrogen atoms to moles of methane. From the balanced chemical formula of methane (CH4), we can see that there are 4 hydrogen atoms per 1 mole of methane.
4. Finally, we can calculate the number of hydrogen atoms present in 32 grams of methane by multiplying the number of moles of methane by the ratio of hydrogen atoms:
Number of hydrogen atoms = Number of moles of methane x Hydrogen atom ratio.
Number of hydrogen atoms = 1.993 moles x 4 = 7.972 hydrogen atoms.
Therefore, there are approximately 7.972 hydrogen atoms present in 32 grams of methane.
Super
Avg no. Is wrong 🤦♂️
Mole of hydrogen = 8 × 1.67×10^-23 × 6.022× 10^23 = 8 g
Methane =CH4
Molecular mass of CH4 is 16
There are 32g of CH4
Find the moles of CH4 by dividing it's mass by its molecular mass:
n=32/16
n=2 moles (CH4)
Since methane (CH4) contains 4 hydrogen atoms per mole, then 2 moles of methane would mean there are 8 moles of hydrogen (2 x 4 = 8)
Then multiply the amount of moles of hydrogen by Avogadro's number:
8x6.022x10^26=4.8176e+27 hydrogen atoms