18.6
use snells law for glass n=sini/sinr
the value of angle of refraction in glass becomes value of angle of incidence in the glass methanol interface
use snells law again to get the angle light makes with methanol.
The answer & explanation for this question is given in the attachment below.
<span><span>When the solvent disrupts the solvents ability to form that crystal lattice and thus need lower temperatures (freezing point depression) than normally expected to form the solid. </span>
My guess would be: B. The solute disrupts crystals formation by the solvent
</span>
The answer is 27.7
According to this equation:
q = M C ΔT
When q= the energy that produced when there is a difference in temperature.
M (g) = amount of the material= 1.900 Kg= 1900 g
ΔT= difference in temperature ( in kelvin or C°)= 4.542 K
C= Specific heat capacity=3.21
∴ q = 1900 * 4.542 * 3.21 = 27701.7 J = 27.7 KJ
Answer:
<h2>7.91 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula

From the question we have

We have the final answer as
<h3>7.91 g/mL</h3>
Hope this helps you