n = gmol = N molecules / N Avogadro
n = ( 2.4 x 10^23 molecules ) / ( 6.022 x 10^23 molecules per gmol )
n = 0.3985 gmol
m = ( n ) ( M )
m = ( 0.3985 ) ( 141.94 g per gmol ) = 56.6 g <----------------------
The formula P2O5, could itself represent one molecule of diphosphorus pentoxide. Or you could specify any number of moles. One mole of P2O5 would be 6.022 x 1023 molecules of P2O5. Two moles would be 1.204 x 1024 molecules, and so on.
The answer is 59,967 grams.
1 mole C4H10 = 58.1222g = 6.022 x 1023 molecules 11.7g C4H10 x 6.022 x 1023 molecules/58.1222g = 1.21 x 1023 molecules C4H10
5.2701 ´ 1023 molecules hydrogen peroxide
38 grams oxygen gas (1 mole O2/32 grams)(6.022 X 1023/1 mole O2) = 7.2 X 1023 molecules of oxygen gas -------------------------------------------------
740 grams P2O5 (1 mole P2O5/141.94 grams)(6.022 X 10^23/1 mole P2O5) = 3.14 X 10^24 atoms of P2O5
72 grams SO2 (1 mole SO2/64.07 grams)(6.022 X 1023/1 mole SO2) = 6.8 X 1023 molecules of sulfur dioxide ============================
6,022.1023
How many molecules are in 94 grams of sodium fluoride
1 mole HgO = 216.59g HgO = 6.022 x 1023 molecules HgO 64.0g HgO x (1mol HgO/216.59g HgO) x (6.022 x 1023 molecules HgO/mol HgO) = 1.78 x 1023 molecules HgO
200 grams H2O (1 mole H2O/18.016 grams)(6.022 X 1023/1 mole H2O) = 6.69 X 1024 molecules of water ======================
Avogadro's number. I will show you. 18.02 grams water (1 mole H2O/18.016 grams)(6.022 X 1023/1 mole H2O) = 6.021 X 1023 atoms of water ----------------------------------------