1 mole of water, 3 moles of methanol and 5 moles of ethanol are mixed together. What is the mole fraction of methanol
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The mass of, , compound formed is 77.9g
62 grams of copper reacted with 32grams of sulfur to form copper sulfide.
stoichiometry of Cu to S is 2:1
We need to find the limiting reactant
Molar mass of copper = 63.5 g/mol
Molar mass of Sulfur = 32 g/mol
Number of moles of Copper =
Number of moles of Sulfur =
Since copper have lesser number of moles, therefore the limiting reagent is copper so the amount of product formed depends on amount of Cu present
stoichiometry of Copper to is 2:1
0.99 mol of Copper forms = = 0.49 mol of
Mass of produced = Number of moles
Molar mass
Mass of produced = 0.49 mol
159 g/mol = 77.9g
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