Determine whether each of the molecules below is polar or nonpolar. Tetrahedral C C l 4 CClX4 Nonpolar Tetrahedral C H 3 O H CHX
1 answer:
You might be interested in
Answer: 0.0274 M
Explanation:-
The balanced chemical solution is:
According to the neutralization law,
where,
= molarity of
solution = 0.117 M
= volume of
solution = 23.4 ml
= molarity of
solution = ?
= volume of
solution = 100.0 ml
= valency of
= 1
= valency of
= 1
Therefore, the concentration of ammonia in a solution will be 0.0274 M
Answer:
<u>∆H° reaction = -890.3 kJ</u>
Explanation:
The given equation is :
Now ,
O2 is in the standard state so its ∆H° is zero.
∆H° is calculated by considering the formation of CO2 , H2O and CH4 .
..........∆H°a = -393.5 kJ
.....∆H°b = -285.8 kJ
..........∆H°c = -74.8 kJ
Multiply equation of water H2O by 2
and reverse the direction of equation of CH4
Hence the sign of ∆H°c = +74.8 kJ becomes +ve.
We are doing this because CH4 is to be in the reactant side not in the product side.
∆H° reaction = ∆H°a +2(∆H°b) -∆H°c
∆H° reaction = -393.5 - 2(285.8) + 74.8
∆H° reaction = -890.3 kJ