What are the number of molecules in 16g of h2co3??
Bnm
258.064
To find the number of molecules in 16g of H2CO3 (carbonic acid), we need to use the concept of moles and Avogadro's number.
Step 1: Determine the molar mass of H2CO3.
The molar mass is calculated by adding up the atomic masses of each element in the compound. The atomic masses are found on the periodic table.
H2CO3 contains:
2 hydrogen (H) atoms with a molar mass of 1.01 g/mol (approximately)
1 carbon (C) atom with a molar mass of 12.01 g/mol
3 oxygen (O) atoms with a molar mass of 16.00 g/mol each
Using these values, we can calculate the molar mass of H2CO3:
Molar mass of H2CO3 = (2 x 1.01 g/mol) + 12.01 g/mol + (3 x 16.00 g/mol)
Step 2: Convert grams to moles.
Using the molar mass calculated in Step 1, we can convert the given mass of H2CO3 into moles.
Moles = Mass (g) / Molar mass (g/mol)
Moles = 16g / Molar mass of H2CO3 (g/mol)
Step 3: Calculate the number of molecules.
Avogadro's number states that there are 6.022 x 10^23 particles (atoms, molecules, ions) in one mole of any substance.
Molecules = Moles x Avogadro's number
So, to get the number of molecules in 16g of H2CO3:
1. Calculate the molar mass of H2CO3.
2. Convert 16g to moles using the molar mass of H2CO3.
3. Multiply the number of moles by Avogadro's number to get the number of molecules.
Finally, use a calculator to perform these calculations and find the answer.
How many mols H2CO3 are in 16 g? That's mols = grams/molar mass = ?
Then there are 6.022E23 molecules in 1 mol.