BECAUSE HE HAS TO OBSERVE THE MOST INSIDE PART OF THE SPECIMEN AND HE HAS TO OBSERVE THE PARTICULAR PART THAT HE HAS TO OBSERVE UNDER THE MICROSCOPE AND THE OUTER PART OF THE SPECIMEN IS AL;READY VISIBLE TO OUR NAKED EYE
<span>mass = moles x molar mass. hope this helps :)
</span>
Answer:
0.39 mol
Explanation:
Considering the ideal gas equation as:
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
At same volume, for two situations, the above equation can be written as:-
Given ,
n₁ = 1.50 mol
n₂ = ?
P₁ = 3.75 atm
P₂ = 0.998 atm
T₁ = 21.7 ºC
T₂ = 28.1 ºC
The conversion of T( °C) to T(K) is shown below:
T(K) = T( °C) + 273.15
So,
T₁ = (21.7 + 273.15) K = 294.85 K
T₂ = (28.1 + 273.15) K = 301.25 K
Using above equation as:
![n_2=\frac{{1.50}\times {294.85}\times 0.998}{3.75\times 301.25}\ mol](https://tex.z-dn.net/?f=n_2%3D%5Cfrac%7B%7B1.50%7D%5Ctimes%20%7B294.85%7D%5Ctimes%200.998%7D%7B3.75%5Ctimes%20301.25%7D%5C%20mol)
Solving for n₂ , we get:
n₂ = 0.39 mol
ANSWER: sulfur, phosphorus, oxygen, nitrogen, carbon, and hydrogen.