the correct answer should be a
Answer:
H2 P4 O1. Explanation: In order to calculate the Empirical formula , we will assume that we have started with 10 g of the compound.
Explanation:
Explanation:
The electromagnetic spectrum shows the wavelength or frequency range of different waves starting from gamma rays to radio waves.
In the electromagnetic spectrum, gamma rays have shorter wavelength while radio wave have longest wavelength.
The correct order is as follows :
(A) Gamma rays
(B) X rays
(C) Ultraviolet
(D) Visible light
(E) Infrared waves
(F) Radio waves
So, the correct order form left to right in order of increasing wavelength is as follows :
Gamma rays < X rays < Ultraviolet < Visible Light < Infrared Waves < Radio Waves
Answer:
C₂H₆
Explanation:
To obtain molecular formula of the gas, you need to find first its molecular mass.
To find molecular mass you need to obtain moles of gasbecause molecular mass is the ratio between mass of the gas and the volume it occupies.
As at STP, 1 mole of a gas occupies 22.4dm³, 1dm³ of gas are:
1dm³ × (1mol / 22.4dm³) = 004464moles.
Its molecular mass is:
1.35g / 004464moles =
30.24g/mol
Now, if the gas is 80%C and 20%H, its <em>empirical formula (Simplest ratio of atoms in a molecule) </em>is:
80% Carbon × (1mol / 12.01g) = 6.66moles C
20% Hydrogen × (1mol / 1.01g) = 19.8moles H
Ratio of H:C is:
19.8 mol H / 6.66mol C = 3
Thus, you can know you will have 3 moles of Hydrogen per mole of Carbon, CH₃ (It weighs 15.04g/mol)
As the gas weighs 30.24 ≈ 2 CH₃
The molecular formula is:
<h3>C₂H₆</h3>
1g=128fl.oz(fluid ounces)
1g=4qt (quarts)
3.785L(liters)=1g
