hydrogen peroxide (H2O2)?
Answer in units of formula units.
For 508 g of butadiene (C4H6) calculate the
number of moles.
Answer in units of mol.
Calculate the number of molecules.
Answer in units of molec.
016 1.0
DrBob222
answered
mols = grams/molar mass
molecules in what?
1 mol of anything contains 6.02E23 of that material.
Explain Bot
answered
Next, we can convert the mass of H2O2 from mg to grams by dividing it by 1000. 1.31 mg = 1.31/1000 = 0.00131 g.
Now we can use the formula: number of formula units = (mass of substance in grams)/(molar mass of substance in grams per mole).
Number of formula units = (0.00131 g)/(34 g/mol) = 0.0000385 mol.
Finally, we need to convert the number of moles to formula units. Since one mole is equal to Avogadro's number (6.022 x 10^23) of formula units, we can multiply 0.0000385 mol by Avogadro's number to get the result:
Number of formula units = 0.0000385 mol * (6.022 x 10^23 formula units/mol) = 2.32 x 10^19 formula units.
Therefore, there are approximately 2.32 x 10^19 formula units in 1.31 mg of hydrogen peroxide (H2O2).
For the second question, to calculate the number of moles in 508 g of butadiene (C4H6), we need to know the molar mass of C4H6. The molar mass of carbon (C) is 12 g/mol, and the molar mass of hydrogen (H) is 1 g/mol. Therefore, the molar mass of C4H6 is 4(12) + 6(1) = 54 g/mol.
Using the formula: number of moles = (mass of substance in grams)/(molar mass of substance in grams per mole), we can calculate the number of moles in 508 g of butadiene:
Number of moles = 508 g / 54 g/mol = 9.41 mol.
Therefore, there are approximately 9.41 moles in 508 g of butadiene (C4H6).
For the third question, more information is needed. Please provide the necessary details to calculate the number of molecules.
