00:01
Question number 18 says, if reaction occurs in the gas phase at stp, and with the timing the mass of product from the volume of reactant, i would say absolutely yes.
00:21
Let me explain how we get to go about this question.
00:26
I have my product, my reactant a plus b, give me the product.
00:32
I'll mind you the reactants are in gas okay if the reaction if the reaction occur in gas face at stp the product i also the gas but at stp so if we know the volume of the guy if i know the volume of the gas can i determine the mass okay to get the mass of the product to get the mass of product product what we normally need is react is the number of more we need more of reactants once we get or we can get any other parameter so more like for this one one more of a can produce one more of my products so once i know the molecular mass of my product i will get the mass of the product but now we are not given the mold of product we are given the volume can we get this or you know this reaction of called at stp.
01:52
So we know what we are called molar volume.
01:59
That is the volume of one mole of gas at stp.
02:12
If i know the more the volume of a gas at stp, then i can get is more.
02:25
I can get it small because this molar volume is a constant which is 22 .4 liter.
02:33
Once i know the volume of this, my reactor, whether a or p at stb, once i know the volume, i can calculate its mold from molar volume and from there i can calculate the mole of my product...