Please show all of your work and remember to count significant figures.
1. If we dissolve 2.500 kg of vanadium (V) sulfate and 1.645 kg of ammonium sulfide in water and then mix them, 570.0 g of solid precipitate is produced. What is the % yield of this reaction?
a. Write out the chemical equation for this reaction and balance it:
b. Calculate the number moles of each of the reagents:
c. Identify the limiting reagent and calculate the theoretical yield.
d. Calculate the % yield:
2. After Cetyl alcohol (C16H340) is combusted with oxygen, we measure that it produced 620 g of water, how many grams of Cetyl alcohol were burned in the reaction?
a. Write out the chemical equation for this reaction and balance it:
b. Calculate the number of moles of water produced.
c. Use the coefficients from the balanced equation to calculate the moles of cetyl alcohol that would need to burn to produce 620 g of water.
d. Convert the moles of cetyl alcohol into grams: