Answer:
80.8 mL
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 74.5 mL
Initial pressure (P₁) = 98.0 kPa
Final pressure (P₂) = 90.4 kPa
Final volume (V₂) =?
The final volume of the gas can be by using the Boyle's laws equation as follow:
P₁V₁ = P₂V₂
98 × 74.5 = 90.4 × V₂
7301 = 90.4 × V₂
Divide both side by 90.4
V₂ = 7301 / 90.4
V₂ = 80.8 mL
Thus, the volume of the gas is 80.8 mL
Answer:
b, c,d
Explanation:
b. There are gas molecules that move faster than the average.
c. All the gas molecules in a sample cannot have the same kinetic energy.
d. The average kinetic energy of gas molecules increase with increasing temperature.
The solubility is the guide to the maximum amount of solute that can be dissolved in a certain amount of solvent at a certain temperature to make a saturated solution. Any amount less than this would result to unsaturated, while any amount more would result to saturated.
6 g/(50 mL * 1 L/1000 mL) = 120 g/L
Since it is less than the solubility of 125 g/L, then <em>this solution is unsaturated</em>.
Answer:
Equilibrium constant of the given reaction is 
Explanation:
....
....
The given reaction can be written as summation of the following reaction-
......................................................................................
Equilibrium constant of this reaction is given as-
![\frac{[NOBr]^{2}}{[N_{2}][O_{2}][Br_{2}]}](https://tex.z-dn.net/?f=%5Cfrac%7B%5BNOBr%5D%5E%7B2%7D%7D%7B%5BN_%7B2%7D%5D%5BO_%7B2%7D%5D%5BBr_%7B2%7D%5D%7D)
![=(\frac{[NOBr]}{[NO][Br_{2}]^{\frac{1}{2}}})^{2}(\frac{[NO]^{2}}{[N_{2}][O_{2}]})](https://tex.z-dn.net/?f=%3D%28%5Cfrac%7B%5BNOBr%5D%7D%7B%5BNO%5D%5BBr_%7B2%7D%5D%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D%7D%29%5E%7B2%7D%28%5Cfrac%7B%5BNO%5D%5E%7B2%7D%7D%7B%5BN_%7B2%7D%5D%5BO_%7B2%7D%5D%7D%29)
Protons have a mass of 1
Neutrons have a mass of 1
So 13*1 + 14*1 = Mass number 27
