Little help needed with moles...
Given 4.14x10 to the 23rd formula units of Na2SO4, ho many moles of Na2So4 would you have.
Just a little confused as to solving this, so if you can explain how it is done also, that would really help.
To solve this problem, you need to understand the concept of a mole. A mole is a unit that represents the amount of a substance. It is similar to how a dozen represents 12 items. In chemistry, a mole represents 6.022 x 10^23 particles of a substance, whether it be atoms, molecules, or formula units.
Now let's solve the problem step by step:
Given: 4.14 x 10^23 formula units of Na2SO4
To find the number of moles, we need to use the formula:
Number of moles = Number of particles / Avogadro's number
Step 1: Identify the number of particles
In this case, the number of particles is given as 4.14 x 10^23 formula units of Na2SO4.
Step 2: Recall Avogadro's number
Avogadro's number is a constant that represents the number of particles in one mole. It is approximately 6.022 x 10^23 particles/mol.
Step 3: Plug the values into the formula
Number of moles = (4.14 x 10^23) / (6.022 x 10^23)
To simplify this calculation, we can divide both the numerator and denominator by 10^23:
Number of moles = (4.14 / 6.022) x (10^23 / 10^23)
Number of moles ≈ 0.686 moles of Na2SO4
Therefore, you would have approximately 0.686 moles of Na2SO4.
Remember, understanding the concept of a mole and Avogadro's number is crucial in solving these types of problems.