Answer:
The total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy
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.
Answer:
a. Alkynes (CnH2n+2) are saturated hydrocarbons.
Yes Animal and plant are cell living
Answer:
f = 0.0123 × 10²⁰ s⁻¹
Explanation:
Given data:
Wavelength = 244 pm
Frequency = ?
Solution:
First of all we will convert the pm into meter.
244 pm. 1 m / 10¹² pm = 244× 10⁻¹² m
Formula:
f = c/ λ
f = frequency
c = speed of light
λ = wavelength
Now we will put the values in formula.
f = c/ λ
f = 3 × 10⁸ m.s⁻¹ / 244× 10⁻¹² m
f = 0.0123 × 10²⁰ s⁻¹
