Sr, because they are just basically asking for it so it is just Sr
For the first compound,
Molar Mass of C=12.01x 2 =24.02
Molar Mass of H= 1.01x 6= 6.06
So molar mas of C2H6= (12.01x2)+(1.01x6) = 30.08
To get the percent composition, the formula is “(Total MM of C in molecule)/(Total MM of molecule)x 100”.
Here is the solution:
% of C= 24.02/30.08 x 100 = 79.9
% of H=6.06/30.08 x 100=20.1
To check if it is equal to 100%, you just have to add the percentages.
For the second compound,
Molar Mass of Na=22.99 x 1 =22.99
Molar Mass of H= 1.01x 1= 1.01
Molar Mass of S= 32.07x 1= 32.07
Molar Mass of O = 16.00 x4 = 64.00
So molar mas of NaHSO4= (22.99)+(1.01)+(32.07)+(16.00x4) = 120.07
To get the percent composition, the formula is “(Total MM of C in
molecule)/(Total MM of molecule)x 100”.
Here is the solution:
% of Na= 22.99/120.07 x 100 = 19.2
% of H= 1.01/120.07x 100 = 0.8
% of S= 32.07/120.07x 100 = 26.7
% of O= 64/120.07 x 100 = 53.3
To check if it is equal to 100%, you just have to add the percentages.
Answer:
The electron-domain geometry is linear. The molecular geometry is linear.
Explanation:
According to the valence shell electron pair repulsion theory (VSEPR), the shape of a molecule depends on the arrangement of electron pairs present on the valence shell of the central atom of the molecule. Electron pairs are arranged in such a way as to minimize repulsion between them. The electron pairs are positioned as far apart in space as possible.
In CS2, both the molecular and electron pair geometries are linear because the electron pairs and bonding groups are positioned at an angle of 180° from each other. Hence the answer.
Answer:
"Well, by definition,
molarity=
<u>moles of solute </u>
volume of solution"
Explanation:
THE LINES UNDER <u>moles of solute </u>MEANS ITS OVER volume of solution"
I THINK IM RIGHT PLZ NOT HATE ON ME IF IN WRONG
