Answer:
89.6L
Explanation:
1mole of any gas occupies 22.4L. This simply means that,
1mole of CO2 occupies 22.4L at stp.
Therefore, 4moles of CO2 will occupy = 4 x 22.4 = 89.6L
Answer:
12/46 * 100
Explanation:
To solve this problem, the atomic masses of the individual elements present in the mix must be taken into consideration.
The atomic mass of carbon is usually 12 a.m.u , the atomic mass of hydrogen is 1 a.m.u while the atomic mass of oxygen is 16 a.m.u
These are the three elements present in methanoic acid. Now, we can calculate the molar mass of the acid.
This is : 1 + 12 + 2(16) + 1 = 46g/mol
Now, to express the percentage of the carbon present, we simply place the atomic mass of the carbon over the total mass and multiply by 100. This is thus 12/46 * 100
moles of H2
Mole ratio of H2 to NH3 is 3: 2
if 3: 2
? 4
= 4*3/2= 6
6moles of H2
moles of N2
mole ratio of N2 to NH3 is 1: 2
if 1 : 2
? 4
4*1/2 = 2
2 moles of N2
In the given above, we have two densities which are 0.89 g/mL and 0.72 g/mL. We are also given that the liquids are immiscible. After the settlement of the liquids, they will form two layers.
The heavier substance, the one which has a higher density will be at the bottom and the lighter substance, the one which has a lower density will be at the top layer.