Answer:
158.2598
Explanation:
158.2598 moles are in 78.8 g of potassium sulfite
CARRY ON LEARNING
Answer: Thus 8.41 g was the mass of the original sample
Explanation:
To calculate the moles :

According to stoichiometry :
As 3 moles of
are produced by = 2 moles of 
Thus 0.103 moles of
are produced by =
of 
Mass of 
Thus 8.41 g was the mass of the original sample.
I believe that's an isotope, but I may be wrong.
Answer:
selling sand I guess? Some places sell sand for high prices.
Explanation: