Oxygen gas can be generated by the decomposition of potassium chlorate according to the following equation:
2 KClO3(s) --->2 KCl(s) + 3 O2(g)
Interesting but I don't see a question.
P atmosphere = P o2 + P h2o
hence P o2 = P atm- P h2o
we get Po2 = 737.6 mm
applying PV=NRT
PV=m/M RT
hence m = PVM/RT
we have to take pressure in atm, Volume in litre and temperature in kelvin
On further calculation we will get as mass in gram as 0.163gm
To calculate the amount of oxygen gas generated from the decomposition of potassium chlorate, you need to know the mass or moles of potassium chlorate.
Here's how you can calculate the mass of oxygen gas produced:
Step 1: Determine the molar mass of potassium chlorate (KClO3)
- Molar mass (K) = 39.10 g/mol
- Molar mass (Cl) = 35.45 g/mol
- Molar mass (O) = 16.00 g/mol
- Molar mass (KClO3) = Molar mass (K) + 3 * Molar mass (Cl) + 3 * Molar mass (O)
Step 2: Convert the mass or moles of potassium chlorate to moles
- If you have the mass of potassium chlorate, divide it by the molar mass to get moles.
- If you already have the moles of potassium chlorate, skip to step 3.
Step 3: Use the balanced equation to find the mole ratio between potassium chlorate and oxygen gas
- From the balanced equation, you can see that 2 moles of KClO3 produce 3 moles of O2.
Step 4: Convert the moles of oxygen gas to mass
- Multiply the moles of O2 by the molar mass of O2 (32.00 g/mol) to get the mass of O2 produced.
For example, let's say you have 5.00 grams of potassium chlorate (KClO3):
1. Calculate the molar mass of KClO3:
Molar mass (K) = 39.10 g/mol
Molar mass (Cl) = 35.45 g/mol
Molar mass (O) = 16.00 g/mol
Molar mass (KClO3) = 39.10 + 3 * 35.45 + 3 * 16.00 = 122.55 g/mol
2. Convert the mass of KClO3 to moles:
Moles of KClO3 = Mass of KClO3 / Molar mass of KClO3
= 5.00 g / 122.55 g/mol
3. Use the balanced equation to find the mole ratio:
According to the balanced equation, 2 moles of KClO3 produce 3 moles of O2.
4. Convert the moles of O2 to mass:
Mass of O2 = Moles of O2 * Molar mass of O2
= (Moles of KClO3 * 3/2) * 32.00 g/mol
By following these steps, you can calculate the mass of oxygen gas generated from the decomposition of potassium chlorate.