The thermal decomposition of potassium chlorate can be used to produce oxygen in the laboratory. 2kclo3 (s) → 2kcl (s) + 3o2 (g) what volume (l) of o2 gas at 25 °c and 1.00 atm pressure is produced by the decomposition of 7.5 g of kclo3 (s)?

Answer : The volume of gas produced is 2.24 L

Explanation :

First we have to calculate the moles of .

Molar mass of = 122.55 g/mole

Now we have to calculate the moles of gas.

The balanced chemical reaction is:

From the reaction we conclude that,

As, 2 moles of decomposes to give 3 moles of

So, 0.06119 moles of decomposes to give moles of

Now we have to calculate the volume of gas.

Using ideal gas equation :

where,

P = Pressure of gas = 1.00 atm

V = Volume of gas = ?

n = number of moles   = 0.0918 mole

R = Gas constant =

T = Temperature of gas =

Putting values in above equation, we get:

Therefore, the volume of gas produced is 2.24 L

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).