What happens when ZnS reacts with O2(g)?
Since, 1 mol of ZnS (s) reacts with 1.5 mol of O 2 (g), 1 × 1.99 mol of ZnS (s) must react with 1.5 × 1.99 mol of O 2 (g). This is equal to 2.985 mol of O 2 (g). Since 1 mol of any gas occupies 22.4 dm 3 volume at STP, 1 × 2.985 mol of O 2 (g) occupies 22.4 × 2.985 dm 3 volume at STP. This is equal to 66.864 dm 3 of volume.
What is the amount of H2 produced from Zn in STP?
The amount of Zn is 2.5g 65.39g/mol = 0.038mol. The amount of H2 produced is the same as the amount of Zn consumed (0.038mol). 1mol of ideal gas will occupy 22.4L at STP. The H2 will occupy 0.038mol ×22.4L/mol = 0.86L.
How much mass does a flask of SO2 have at STP?
A flask contains 500cm³ of SO2 at STP. How much mass does the gas have? 8 clever moves when you have $1,000 in the bank. We’ve put together a list of 8 money apps to get you on the path towards a bright financial future. mso2 = mass of SO2 = P*V*MWso2/ (R*T) =? Well, we interrogate the molar quantity from the old Ideal Gas equation of state…
What is the mole ratio of SO2 to ZnS?
Of course, you can do this one in your head once you know the molar mass of zinc sulfide (~97g/mol). A mass of 9.7g of ZnS is about one tenth of a mole and since the mole ratio of SO2 to ZnS is 1:1, then you get about one tenth of a mole of SO2.
What is the volume of 1 mol of oxygen at STP?
One mol of Ideal Gas occupies 22.4 L at STP. Oxygen gas behaves nearly ideally at STP, so 2.8 mol O2 should have a volume close to 2.8 mol x 22.4 L/mol = 62.72 L. Those who are strict about the significant figure rules would report the answer as 63 L because the volume was specified to only two significant figures.
How do you calculate the volume of oxygen in a reaction?
If you know how many moles of oxygen are needed, you can use the molar volume of a gas at STP to calculate the volume of oxygen. Use water’s molar mass to determine how many moles of water would the reaction produce Notice the 1:2 mole ratio that exists between oxygen and water. This means that 1 mole of oxygen will produce 2 moles of water.