How many molecules are in 3.78 moles of carbon dioxide?
moles = grams/molar mass
There are 6.022E23 molecules in 1 mole.
idk bro I'm wondering the same thing
To determine the number of molecules in a given amount of a substance, you can use Avogadro's number. Avogadro's number is defined as 6.022 x 10^23 and represents the number of particles (atoms, molecules, ions) in one mole of a substance.
To find the number of molecules in 3.78 moles of carbon dioxide, follow these steps:
Step 1: Identify the formula of carbon dioxide, which is CO2.
Step 2: Find the molar mass of carbon dioxide. The molar mass of carbon (C) is 12.01 g/mol, and the molar mass of oxygen (O) is 16.00 g/mol. Multiply the molar mass of carbon (12.01) by 1 and the molar mass of oxygen (16.00) by 2 because there are two oxygen atoms in each molecule of carbon dioxide. The molar mass of carbon dioxide (CO2) is 12.01 g/mol + (16.00 g/mol x 2) = 44.01 g/mol.
Step 3: Use Avogadro's number to convert moles to molecules. Multiply the number of moles (3.78) by Avogadro's number (6.022 x 10^23). The calculation is: 3.78 moles x (6.022 x 10^23 molecules/mol) = 2.275 x 10^24 molecules.
Therefore, there are approximately 2.275 x 10^24 molecules in 3.78 moles of carbon dioxide.