To
determine the volume of both concentration of the solution to make another concentration of solution, we need to set up
two equations since we have two unknowns. <span>
For the first equation, we do a mass balance:
mass of 50% solution + mass of 20% solution =
mass of 40% solution
M1 + M2 = M3
For the second equation, we do a component balance,</span>
<span>
M1(50%) + M2(20%) = M3(40%)
.50M1 + .20M2 = .40M3
To determine the ratio, we assume we have to make a 100 g of the 40% solution. So, the equation would change to</span>
<span>
</span>
<span>M1 + M2 = 100</span>
.50M1 + .20M2 = (100)(.40) = 40
Solving for M1 and M2,
M1 = 66.67 g
M2 = 33.33 g
So, the ratio of the 20% and the 50% would be approximately 33.33/66.67 = 0.5.
To solve the problem we will use the following equation:
n(Li) = N(Li) / NA
n - the number of moles
N - the number of particles
NA - Avogadro's number that has following value: 6.022×10²³ mol⁻¹
From the upper relation follows:
N(Li) = n(Li) × NA
N(Li) = 1mole × 6.022×10²³ mol⁻¹ = 6.022×10²³ atoms of <span>lithium</span>
Based on the given scenario above, the correct answer would be option B. Potential energy is a stored energy which is affected by its position, therefore, t<span>he ball at the top of the 5 foot hill has the least potential energy. Hope this answers your question. Have a great day!</span>
Answer:
you are looking at the official nkana fc website
Answer:
lo siento yo do not know lol
Explanation: