Based on the balanced equation,
10Li + N2F4 → 4LiF + 2Li3N
calculate the formula units of LiF formed when 54 molecules of N2F4 are reacted.
since one mole of N2F4 yields 4LiF, then 54N2F4 yields 216LiF, am i correct
Looks good to me.
Yes, you are correct. To calculate the formula units of LiF formed when 54 molecules of N2F4 are reacted, you can follow these steps:
Step 1: Determine the moles of N2F4 reacted. Since you have 54 molecules of N2F4, you can use Avogadro's number (6.022 x 10^23) to convert molecules to moles.
Number of moles of N2F4 = (54 molecules of N2F4) / (6.022 x 10^23 molecules/mol)
Step 2: Use the coefficients from the balanced equation to determine the moles of LiF formed. According to the balanced equation, 1 mole of N2F4 reacts to form 4 moles of LiF.
Number of moles of LiF formed = (Number of moles of N2F4) x (4 moles of LiF / 1 mole of N2F4)
Step 3: Calculate the formula units of LiF formed. Since 1 mole of any substance contains Avogadro's number (6.022 x 10^23) of formula units, you can use the following conversion factor:
1 mole of LiF = 6.022 x 10^23 formula units of LiF
Formula units of LiF formed = (Number of moles of LiF formed) x (6.022 x 10^23 formula units/mole)
By following these steps and performing the calculations, you will find that 54 molecules of N2F4 yield 216 formula units of LiF, confirming your initial answer.