How many mol of potassium (K) are present in cereal that claims to have 7.00 g of potassium per serving?
It's 1.79 x 10^-1 g K (just took the checkpoint and got it correct) :)
Just give the answer bro
It is not 2.74 or 3.13
To determine the number of moles of potassium (K) present in the cereal, you need to use the molar mass of potassium and the given mass of potassium per serving.
1. Find the molar mass of potassium (K) on the periodic table. The molar mass of potassium is approximately 39.10 g/mol.
2. Use the given mass of potassium per serving, which is 7.00 g, and divide it by the molar mass of potassium to convert grams to moles:
Moles of K = Mass of K / Molar mass of K
Moles of K = 7.00 g / 39.10 g/mol
After performing the calculation, you'll find that there are approximately 0.179 moles of potassium (K) present in the cereal.
Thank you!
1.57
the atomic mass of potassium is ≈ 39.1 g
find the fraction of a mole in the cereal