If you are given the concentration of the solution in the flask in terms of molarity, then you can easily determine the moles of barium chlorate in the flask by multiplying the volume of the solution to the molarity. Then, multiply the resulting value to 1000 to obtain millimoles of barium chlorate. However, if you are given the mass of the barium chlorate added. You use the molar mass of the compound which is 304.23 g/mol to determine the number of moles. You divide the mass with the molar mass of the compound. Then, you multiply it to 1000 to obtain millimoles.
Answer:
Pythagoras was the first ancient astronomer to suggest that there was a harmony of the spheres, and that the movement of the planets, sun, moon and stars could be described by whole numbers and mathematical precision. His other discovery was that the morning and evening star are the same thing, the planet Venus.
Explanation:
if im right plz give me brainliest !! :)
Answer:
Nitrogen molecule (N2)
The electronic configuration of nitrogen (Z=7) = 1s2 2s2 2px12py12pz1.
The total number of electrons present in the nitrogen molecule (N2) is 14.
In order to maximize energy, these 14 electrons can be accommodated in the different molecular orbitals.
N2: KK'(σ2s)2 (σ*2s)2 (π2Px)2 (π2py)2 (σ2pz)2
Here (σ1s)2 (σ*1s)2 part of the configuration is abbreviated as KK’, which denotes the K shells of the two atoms. In calculating bond order, we can ignore KK’, as it includes two bonding and two antibonding electrons.
The bond order of N2can be calculated as follows:
Here, Nb = 10 and Na = 4
Bond order = (Nb−Na) /2
B.O = (10−4)/2
B.O = 3
So your answer should be C3.
KCl2 (potassium dichloride) ?I’m not completely sure
