At STP, how many moles are in 21.5 L CH4?

0.96 mole of CH4.

Explanation:

From a background knowledge of gas laws, we understood that 1 mole of a gas occupy 22.4 L at STP. This implies that 1 mole of CH4 also occupy 22.4 L at STP.

Now, we shall determine the number of mole of CH4 that will occupy 21.5 L at STP. This is illustrated below:

1 mole of CH4 occupied 22.4 L at STP.

Therefore, Xmol of CH4 will occupy 21.5 L at STP. i.e

Xmol of CH4 = (1 × 21.5)/22.4

Xmol of CH4 = 0.96 mole

Therefore, 0.96 mole of CH4 will occupy 21.5 L at STP.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying