HOW MANY GRAMS ALSO MOLES

Question

When solid lead(II) sulfide ore burns in oxygen gas, the products are solid lead(II) oxide and sulfur dioxide gas.

How many grams of oxygen are required to react with 22.0 g of lead(II) sulfide?

How many grams of sulfur dioxide can be produced when 67.0 g of lead(II) sulfide reacts?

How many grams of lead(II) sulfide are used to produce 120. g of lead(II) oxide?

Answer 1

Hello, Anya,

There isn't enough room to give a detailed analysis of what I've done. I can't even fit my table here. It can be found at: https://docs.google.com/spreadsheets/d/1FEuNKjKqHaHm0clFuHjAY1Y8j4dqd85YEKtuRx1_IFQ/edit?usp=sharing

Please work your way through the logic. Once we know the mass of one component, we can calculate it's moles and use the balanced equation to predict moles and masses of other components. For example, the equation says if we use 1 mole of PbS we should get 1 mole each of PbO and SO2. The work below establishes the number of moles and then modify the moles of other products/reactants using the equation. The rows marked 1, 2, and 3 deal with the three questions in the order asked.

Bob