Answer:
0.22L
Explanation:
Given parameters:
Concentration of solution = 4.00M
Mass of lithium Bromide = 75g
Unknown:
Volume of water = ?
Solution:
Concentration in terms of the molarity is the number of moles of solute in a solution.
Molarity = 
let us find the number of moles first;
Number of moles = 
Molar mass of LiBr = 7 + 80 = 78g/mol
number of moles = 
number of moles = 0.96moles
Volume of water = 
= 0.96/4 = 0.22L
In rainbow, the color that has the longest wavelength is red which means option 5 is the correct choice.
Dispersion is described to be the spreading of white mild into its complete spectrum of colors, in truth we also can say a complete spectrum of wavelengths. The white mild turns into from solar and includes seven colors. On one end of the spectrum is red with the longest wavelength. Blue or violet mild has the shortest wavelength. White mild is a aggregate of all hues withinside the color spectrum. The colors of the rainbow are: Red, orange, yellow, green, blue, indigo, violet.
Therefore, option 5 is the correct choice.
To learn more about rainbow check the link below:
brainly.com/question/12008276
#SPJ4
Answer:
Partial pressure SO₂ → 0.440 atm
Explanation:
We apply the mole fraction concept to solve this:
Moles of gas / Total moles = Partial pressure of the gas / Total pressure
Total moles = 0.3 moles of CO₂ + 0.2706 moles of SO₂ + 0.35 moles H₂O
Total moles = 0.9206 moles
Mole fraction SO₂ = 0.2706 moles / 0.9206 moles → 0.29
Now, we can know the partial pressure:
0.29 = Partial pressure SO₂ / Total pressure
0.29 = Partial pressure SO₂ / 1.5 atm
0.29 . 1.5atm = Partial pressure SO₂ → 0.440 atm
D = m / V
11.3 = 282.5 / V
V = 282.5 / 11.3
V = 25 cm³
Answer C
hope this helps!
