Answer:
0.86 g/mL
Explanation:
In order to solve the problem, you have to know the formula for "Density." Density refers to<em> </em><em>"mass per unit volume." </em><em>It's formula is:</em>
- <em>Density (ρ) = </em>
<em />
Next, we have to convert the units of measurement in accordance to what is being asked in the problem. It is asking for "g/mL," which means we have to convert 1.25 quarts<em> (qt.) </em>to mL and 2.25 pounds<em> (lbs.)</em> to grams.
Let's solve.
1.25 qt. x 
=<em> 1,182.94 mL</em>
2.25 pounds x 
= <em>1,020.58 grams</em>
Now that we converted them to their appropriate units of measurement, we can now solve for density.
- <em>ρ = </em><em />
- <em>ρ = </em>
<em />
<em>The density of the motor oil is 0.86 g/mL</em>
It could be Ne(Neon) or Ar(Argon) but the difference between both of them is that they are in different period Neon is in the 2 period and Argon is in 3 period
Answer:
moles solute = 25.5 / molar mass
moles solute /0.1 Kg = molality
delta T = molality x 1.86
freezing point = 0°C - delta T
Answer:
Answer is in the explanation.
Explanation:
Thin layer chromatography is a chromatographic technique used to separate the components of a mixture using a thin stationary phase supported by an inert backing and a mobile phase. The separation principle is in the different affinities between the components of the mixture and the stationary or mobile phase.
<em>The affinity in mobile phase could be improved changing the polarity of this phase</em>. In this case, you could change proportion of hexane/ethyl acetate to change polarity of mobile phase and the affinity of the different compounds to mobile or stationary phase.
I hope it helps!
