Let us assume that there are 100 grams of substance present. The masses of the constituents will be:
C - 58.51 g
H - 7.37 g
N - 100 - 58.51 - 7.37 = 34.12 g
Next, we determine the moles of each substance by dividing by the atomic masses:
C - 58.51/12 = 4.88
H - 7.37/1 = 7.37
N - 34.12/14 = 2.44
Dividing all of the moles by the lowest number of moles, which is 2.44 of nitrogen, we get the ratio:
C - 2
H - 3
N - 1
The empircal formula becomes C₂H₃N
Next, we apply Graham's Law of diffusion, which mathematically is:
v₁/v₂ = √M₂ / √M₁
Let species 1 be helium, meaning v₁/v₂ = 3.2 and M₁ = 4
3.2 = √M₂ / √4
M₂ = 40.96
The mass of the empircal formula was:
12 * 2 + 1 * 3 + 14 = 41
The empircal formula is the molecular formula as their masses are approximately the same. This compound is C₂H₃N
Newton first law of motion states that object will remain at rest until outside force acts on it
•The earth weighs-5.972 × 10^24 kg
•The sun is 94.079 million miles away
•A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it.
•Airplanes fly because they are able to generate a force called Lift which normally moves the airplane upward. Lift is generated by the forward motion of the airplane through the air. This motion is produced by the Thrust of the engine.
•Flies need sticky feet to walk on ceilings, but not so sticky that they get stuck upside down. So each foot comes with a pair of claws that help hoist the gooey foot off the wall. Flies use several different techniques to get unstuck: pushing, twisting, and peeling its footpads free
•rainbows are made by the refraction of light particles
•sharks are not mammals since they are cold blooded
Answer:
Potassium
Explanation:
The symbol for the element with a mass number of 169 is Tm for Thulium.
The letters to unscramble are S, Si, Tm, P, Au, and o.
The mystery element is Potassium.
Hope that helps.
