Answer:
Rate = 116m⁻¹s⁻¹[lactose][H]⁺
Explanation:
the formula for rate of reaction is given as
Rate = k[lactose]∧α[H]⁺∧β
we solve for the value of α and β
([lactose]₁/[lactose]₂)∧α
α = ![\frac{ln\frac{0.00116}{0.00232} }{ln\frac{0.01}{0.02} }](https://tex.z-dn.net/?f=%5Cfrac%7Bln%5Cfrac%7B0.00116%7D%7B0.00232%7D%20%7D%7Bln%5Cfrac%7B0.01%7D%7B0.02%7D%20%7D)
when we divide this equation
α = ![\frac{ln0.5}{ln0.5}](https://tex.z-dn.net/?f=%5Cfrac%7Bln0.5%7D%7Bln0.5%7D)
α = 1
we find β
R₁/R₂ = 0.01/0.02(0.001/0.001)∧β
0.00116/0.00232 = 0.5(1)∧β
β = 1
Rate = k[lactose]∧α[H]⁺∧β
we have to find the value for k
k = 0.00116/0.01(0.001)
k = 0.00116/0.00001
= 116m⁻¹s⁻¹
<u>Rate = 116m⁻¹s⁻¹[lactose][H]⁺</u>
Answer:
Explanation:
mass of aluminum 2.8 kg = 2.8 x 1000 = 2800 g
ρ = density of aluminum given = 2.7 g / cm³
density = mass / volume
volume = mass / density
= 2800 / 2.7
= 1037 cm³
So volume of cube required = 1037 cm³.