Answer:
Mass = 11 g
Explanation:
Given data:
Mass of Zn = 5 g
Mass of HCl = 50 g
Mass of hydrogen gas produced = 6 g
Mass of zinc chloride produced = ?
Solution:
Chemical equation:
Zn + 2HCl → ZnCl₂ + H₂
Number of moles of Zn:
Number of moles = mass / molar mass
Number of moles = 5 g / 65.38 g/mol
Number of moles = 0.08 mol
Number of moles of HCl :
Number of moles = mass / molar mass
Number of moles = 50 g / 36.5 g/mol
Number of moles = 1.4 mol
Now we will compare the moles of both reactant with zinc chloride.
Zn : ZnCl₂
1 : 1
0.08 : 0.08
HCl : ZnCl₂
2 : 1
1.4 : 1/2×1.4 =0.7 mol
The number of moles of zinc chloride produced by Zn are less so it will limiting reactant.
Mass of zinc chloride:
Mass = number of moles × molar mass
Mass = 0.08 mol × 136.3 g/mol
Mass = 11 g
Answer is: Kp = 66,586.
Chemical reaction: PCl₃(g) + Cl₂(g) ⇔ PCl₅(g).
Kp - equilibrium constants expressed in terms of partial pressures of gases.
Kp = p(PCl₅) ÷ p(PCl₃) · p(Cl₂). p-partial pressure.
Kp = 1,67 atm ÷ 0,132 atm · 0,190 atm
Kp = 66, 586 1/atm. Favors product.
Electronegativity refers to the ability of an atom to attract shared electrons in a covalent bond. The higher the value of the electronegativity, the more strongly that element attracts the shared electrons.
Answer:
0.702 /s
Explanation:
Rate constant at 
Rate constant at 
Activation energy, 
Use the following equation to calculate 
Use the following equation to calculate
![\ln \frac{\mathrm{K}_{2}}{\mathrm{~K}_{1}}=\frac{\mathrm{Ea}}{\mathrm{R}}\left[\frac{1}{\mathrm{~T}_{1}}-\frac{1}{\mathrm{~T}_{2}}\right]](https://tex.z-dn.net/?f=%5Cln%20%5Cfrac%7B%5Cmathrm%7BK%7D_%7B2%7D%7D%7B%5Cmathrm%7B~K%7D_%7B1%7D%7D%3D%5Cfrac%7B%5Cmathrm%7BEa%7D%7D%7B%5Cmathrm%7BR%7D%7D%5Cleft%5B%5Cfrac%7B1%7D%7B%5Cmathrm%7B~T%7D_%7B1%7D%7D-%5Cfrac%7B1%7D%7B%5Cmathrm%7B~T%7D_%7B2%7D%7D%5Cright%5D)
Therefore,
![\ln \left(\frac{K_{2}}{3.46 \times 10^{-2} \mathrm{~s}^{-1}}\right) &=\frac{50.2 \times 10^{3} \mathrm{~J} / \mathrm{mol}}{8.314 \mathrm{JK}^{-1} \mathrm{~mole}^{-1}}\left[\frac{1}{298 \mathrm{~K}}-\frac{1}{350 \mathrm{~K}}\right]](https://tex.z-dn.net/?f=%5Cln%20%5Cleft%28%5Cfrac%7BK_%7B2%7D%7D%7B3.46%20%5Ctimes%2010%5E%7B-2%7D%20%5Cmathrm%7B~s%7D%5E%7B-1%7D%7D%5Cright%29%20%26%3D%5Cfrac%7B50.2%20%5Ctimes%2010%5E%7B3%7D%20%5Cmathrm%7B~J%7D%20%2F%20%5Cmathrm%7Bmol%7D%7D%7B8.314%20%5Cmathrm%7BJK%7D%5E%7B-1%7D%20%5Cmathrm%7B~mole%7D%5E%7B-1%7D%7D%5Cleft%5B%5Cfrac%7B1%7D%7B298%20%5Cmathrm%7B~K%7D%7D-%5Cfrac%7B1%7D%7B350%20%5Cmathrm%7B~K%7D%7D%5Cright%5D)
![\ln \left(\frac{K_{2}}{3.46 \times 10^{-2} \mathrm{~s}^{-1}}\right) &=\frac{50.2 \times 10^{3} \mathrm{~J} / \mathrm{mol}}{8.314 \mathrm{JK}^{-1} \mathrm{~mole}^{-1}}\left[\frac{52 \mathrm{~K}}{298 \mathrm{~K} \times 350 \mathrm{~K}}\right]](https://tex.z-dn.net/?f=%5Cln%20%5Cleft%28%5Cfrac%7BK_%7B2%7D%7D%7B3.46%20%5Ctimes%2010%5E%7B-2%7D%20%5Cmathrm%7B~s%7D%5E%7B-1%7D%7D%5Cright%29%20%26%3D%5Cfrac%7B50.2%20%5Ctimes%2010%5E%7B3%7D%20%5Cmathrm%7B~J%7D%20%2F%20%5Cmathrm%7Bmol%7D%7D%7B8.314%20%5Cmathrm%7BJK%7D%5E%7B-1%7D%20%5Cmathrm%7B~mole%7D%5E%7B-1%7D%7D%5Cleft%5B%5Cfrac%7B52%20%5Cmathrm%7B~K%7D%7D%7B298%20%5Cmathrm%7B~K%7D%20%5Ctimes%20350%20%5Cmathrm%7B~K%7D%7D%5Cright%5D)
hence, the rate constant at 
is 0.702
Answer:
The plants in the northern and southern states during the summer receive the most sunlight and experience a growth period.
Explanation:
The plants in the northern and southern states during the summer receive the most sunlight and experience a growth period because in the summer season, plants receive more solar radiation as compared to winter season. Plant needs more solar radiation for higher growth. Photosynthesis is the process which helps the plant to produce more vegetation and this will only happens when the sunlight is high so we can say that summer season enables the plant to have more vegetative growth.
