True.
Every environment and ecosystem will include these factors.
Tempature and location may change freezing
Answer:
252.5g
Explanation:
Given parameters:
Volume of vodka = 0.8L
Molarity of ethanol = 6.86M
Unknown:
Mass of ethanol = ?
Solution:
Molarity is one of the ways of expressing concentration. It is the number of moles of a substance in a solution.
Since Vodka = ethanol + water = solution
Molarity =
Number of moles of ethanol = molarity of vodka x volume of solution
Once we obtain the number of moles, we can derive the mass of the ethanol;
Number of moles = 6.86M x 0.8L = 5.49moles
Mass of ethanol = number of moles x molar mass
molar mass of ethanol = 12 + 3(1) + 12 + 2(1) + 16 + 1 = 46g/mol
Mass of ethanol = 5.49 x 46 = 252.5g
Answer:
a). m/s
b). 1.23 m/s
Explanation:
Given :
Index of refraction for water, = 1.33
Index of refraction of diamond, = 2.42
We know that,
Refractive index of any material is given by,
where c = sped of light in air
v = speed of light in any medium
a). Speed of light in water
m/s
b). Speed of light in diamond
= 1.23 m/s