I know the formulas to a mole which equals 6.02x10 to the 23rd power but i have no idea what to do with the formula when converting grams to moles visa versa or atoms or molecules, and i have no idea what goes with what as far as what resources you're supposed to use. Some you're suppose to use the periodic table or mass numbers.
Jessica, check your 4-13-11,12:33am post for solution to your math prob.
what volume will it occupy with 2.60 moles?
When converting between grams, moles, atoms, or molecules, it's important to understand the relationships between these units. The formula you mentioned, which is known as Avogadro's number, states that there are approximately 6.02 x 10^23 particles (atoms, molecules, or formula units) in one mole of a substance.
To convert between grams and moles, you need to use the molar mass of the substance. The molar mass is the mass (in grams) of one mole of a substance and can be found on the periodic table as the atomic mass or average atomic mass. The molar mass is expressed in grams/mol.
To convert from grams to moles, you can use the following formula:
moles = grams / molar mass
To convert from moles to grams, you can rearrange the formula:
grams = moles x molar mass
For example, if you have 24 grams of carbon, you can find the number of moles of carbon by dividing the mass (grams) by the molar mass of carbon, which is approximately 12.01 g/mol. Using the formula above, you would calculate:
moles = 24 g / 12.01 g/mol = 1.997 moles (rounded to three decimal places)
Conversely, if you have 1.5 moles of water (H2O), you can find the mass of water by multiplying the number of moles by the molar mass of water, which is approximately 18.02 g/mol. Using the formula mentioned earlier, you would calculate:
grams = 1.5 moles x 18.02 g/mol = 27.03 grams (rounded to two decimal places)
When converting between moles and atoms or molecules, you need to use Avogadro's number. Since there are 6.02 x 10^23 particles in one mole, you can use this ratio for conversion.
For example, to convert from moles to atoms, you can use the following formula:
atoms = moles x Avogadro's number
To convert from atoms to moles, you would rearrange the formula:
moles = atoms / Avogadro's number
Similarly, to convert from moles to molecules, you would use the same formula as for atoms, but the units would change to molecules.
Remember to keep track of units during calculations and always use the appropriate molar mass or Avogadro's number based on the substance you are working with.