Hey there!:
Molar mass CO2 = 44.01 g/mol
44.01 g CO2 ------------------- 6.02*10²² molecules CO2
88 g CO2 ------------------------ y
y = 88 * ( 6.02*10²² ) / 44.01
y = 5.29*10²⁵ / 44.01
y = 1.2 * 10²⁴ molecules of CO2
Answer A
Hope that helps!
Given,
The two isotopes of B are 10B and 11B
% abundance of 10B = 19.80
% abundance of 11B = 80.20
Average atomic mass of B
= 
= 
= 
= 
= 10.802
Therefore, the average atomic mass of B is 10.802 u
Both are considered mixtures<span> - that is, they are made up of two or more pure substances. ... A </span>heterogeneous mixture<span> appears to be made of </span>different<span>substances. A </span>solution<span> appears the same throughout. In the fluid phase (gas or liquid, or any combination of those) a </span>solution<span> is transparent (thought not colourless). hope that helps</span>
Answer:
See explanation
Explanation:
The mechanism of this reaction including intermediates are shown in the image attached to this answer.
The reaction of HBr with 3-bromocyclohexene yields trans-1,2-dibromocyclohexane as the sole product because; the proton first attacks the 3-bromocyclohexene and a brominium ion is formed. This brominium ion is a cyclic intermediate as shown in the image attached.
Attack of a bromine ion afterwards must lead to the formation of trans-1,2-dibromocyclohexane as shown.
Answer:
C.
Explanation:
The increase the [H+] (concentration of H+ ions)
However, they decrease the pH if acids are added to any solution. Since they have more [H+] ions, they increase their conc. in the solution