Explanation:
In the following reaction;
aA+bB⇌cC+dD
A and B are the reactants while C and D are the products.
a, b, c and d are regarded as coefficients.
The dependence of the reaction on the concentration of the reactants is given by the rate law.
This is given by;
rate= k [A]^m [B]^n
where
K = Rate constant. Constant for the reaction at that temperature.
m = order of reeaction with respect to A
n = order of reaction with repsect to B
Overall order of reaction is given by m + n
Answer:
-0.93 °C; 100.26 °C
Step-by-step explanation:
(a) Freezing point depression
The formula for the freezing point depression ΔT_f is
ΔT_f = iKf·b
i is the van’t Hoff factor: the number of moles of particles you get from a solute.
For sucrose,
Sucrose (s) ⟶ sucrose (aq)
1 mole sucrose ⟶ 1 mol particles i = 1
ΔT_f = 1 × 1.86 × 0.50
ΔT_f = 0.93 °C
T_f = T_f° - ΔT_f
T_f = 0.00 – 0.93
T_f = -0.93 °C
(b) Boiling point elevation
The formula for the boiling point elevation ΔTb is
ΔTb = iKb·b
ΔTb = 1 × 0.512 × 0.50
ΔTb = 0.256 °C
Tb = Tb° + ΔTb
Tb = 100.00 + 0.256
Tb = 100.26 °C
D.) "Electrons" <span>may be shared by or transferred to other atoms.
Hope this helps!</span>
Answer:
A.) Atoms contain electrons
Explanation:
J.J. Thomson conducted an experiment in which he took a gas at low pressure in a discharge tube and applied high voltage current. When he did so, he noticed that there are some particles emitting from cathode going towards the anode. <u>Then he concluded that they are negatively charged particles and coined them electrons.</u>
<u>Hence, out of the options:- A.) Atoms contain electrons is correct.</u>
Explanation:
Below is an attachment containing the solution.
