How many moles of CeI3 are in 9.66 ×
1021 formula units of CeI3 (cerium(III) iodide;
a bright, water, soluble solid).
Answer in units of mol
To find the number of moles of CeI3, we need to use Avogadro's number, which relates the number of formula units to moles.
Avogadro's number is 6.022 × 10^23 formula units/mole.
Given that there are 9.66 × 10^21 formula units of CeI3, we can calculate the number of moles:
Number of moles = (9.66 × 10^21 formula units) / (6.022 × 10^23 formula units/mole)
Number of moles = 1.603 × 10^-2 moles
So, there are approximately 0.01603 moles of CeI3 in 9.66 × 10^21 formula units.
To determine the number of moles of CeI3 in 9.66 × 1021 formula units, we need to use Avogadro's number.
Avogadro's number states that one mole of any substance contains approximately 6.022 × 1023 particles.
Thus, to calculate the number of moles, we can use the following formula:
Number of moles = Number of formula units / Avogadro's number
Number of moles = 9.66 × 1021 formula units / 6.022 × 1023 mol-1
Calculating the above expression, we find:
Number of moles = 0.1604 mol
Therefore, there are approximately 0.1604 moles of CeI3 in 9.66 × 1021 formula units.
To calculate the number of moles of CeI3, you need to use Avogadro's number (6.022 × 10^23) and the ratio between formula units and moles.
The given quantity is 9.66 × 10^21 formula units of CeI3.
1 mole of any substance contains Avogadro's number of formula units. Therefore, we can set up a conversion factor using Avogadro's number:
1 mole CeI3 = 6.022 × 10^23 formula units CeI3
Now we can calculate the number of moles of CeI3:
9.66 × 10^21 formula units CeI3 × (1 mol CeI3 / 6.022 × 10^23 formula units CeI3)
Simplifying and canceling units:
9.66 × 10^21 / 6.022 × 10^23 = 1.603 × 10^-2 mol CeI3
Therefore, there are approximately 1.603 × 10^-2 moles of CeI3 in 9.66 × 10^21 formula units of CeI3.