6-(2+4)
6-6
=0 Formal charge of O atoms a and b is 0
6-(1+6)
6-7
= -1 Formal charge for O atoms c is -1
Answer 0,0,-1
Neon is the element that is classified as a noble gas at STP.
Answer:
49.0g/mol is molar mass of X
Explanation:
<em>551mg of X are dissolved in 100g of benzonitrile</em>
<em>Freezing point of solution: -13.4°C</em>
The freezing point depression of a solution (Colligative property) follows the equation:
ΔT = Kf*m*i
<em>Where ΔT is change in freezing point from the pure solvent (Benzonitrile: -12.8°C) to the solution (-13.4°C)</em>
<em>Kf is freezing point depression of benzonitrile: 5.34°C/m</em>
m is molality of the solution (Moles X / kg of benzonitrile)
And i is Van't Hoff factor (1 for any solute in benzonitrile)
ΔT = -12.8°C - (-13.4°C) = 0.6°C
Solving for molality of the solution:
ΔT = Kf*m*i
0.6°C = 5.34°C/m*m*1
0.1124m = molality of the solution
Moles of X are:
0.1124mol/kg benzonitrile * 0.1kg benzonitrile = 0.01124 moles X
In 551mg = 0.551g:
Molar mass:
0.551g / 0.01124mol =
49.0g/mol is molar mass of X
Answer:
The relation where both species live and benefit off each other is Mutualism
Definition:
symbiosis that is beneficial to both organisms involved.
hope this helped :)