Answer:
This depicts an electrolytic cell.
Answer is: mass of lithium fluoride is 3,732 grams.
m(solution) = 18,66 g.
ω(solution) = 20% = 20% ÷ 100% = 0,2.
m(LiF) = ?
ω(solution) = m(LiF) ÷ m(solution).
m(LiF) = ω(solution) · m(solution).
m(LiF) = 0,2 · 18,66 g.
m(LiF) = 3,732 g.
Answer:
The answer to the question is
The resultant ground reaction force exerted by the floor on the volleyball player's shoes = 2088.06 N
Explanation:
To solve the queston we list out the variables thus
Mass of volley ball player = 80 kg
Normal force exerted on her shoes by the floor N =2000 N
friction force, f, exerted on her shoes backwards = 600 N
The resultant ground reactive force, R, is given by
R² = N² + f² = 2000² + 600² = 4000000 + 360000 = 4360000
Therefore R = √(4360000) = 2088.06 N
The direction of the force = atan (2000/600) = 73.3 ° clocwise or 106.699 ° counter clockwise
Answer:
The answer is a compound.
it is a compound as it contains different elements
Explanation:
Answer:
3.47 × 10¹ M⁻¹ h⁻¹
Explanation:
From the question, it's clearly depicted that it is a second order reaction rate.
NOW, rate constant for second order reaction can be given as:
k(t)=
Given that:
t = 24 hours
Let the initial concentration of reactant
Final concentration
∴
k(t)=
k(24)hours = 833.33 M⁻¹
k =
k = 34.72 M⁻¹ h⁻¹
k = 3.472 × 10¹ M⁻¹ h⁻¹
∴ the value of the rate constant (k) = 3.472 × 10¹ M⁻¹ h⁻¹