<u>Answer:</u> The boiling point of solution is 100.62°C
<u>Explanation:</u>
Elevation in boiling point is defined as the difference in the boiling point of solution and freezing point of pure solution.
The equation used to calculate elevation in boiling point follows:
To calculate the elevation in boiling point, we use the equation:
Or,
where,
Boiling point of pure water = 100°C
i = Vant hoff factor = 1 (For non-electrolytes)
= molal boiling point elevation constant = 0.512°C/m.g
= Given mass of solute = 23.6 g
= Molar mass of solute = 103.5 g/mol
= Mass of solvent (water) = 188 g
Putting values in above equation, we get:
Hence, the boiling point of solution is 100.62°C
Answer:
Fahrenheit
Explanation:
The temperature of 42 degrees in Chicago, that has been recorded as a day's temperature record high for the month of August, is in Fahrenheit degrees. The reason why the assumption is that it is Fahrenheit degrees is the temperature scale that can be reached in the continental parts.
In most of the world (except for the United States, Jamaica, and a few other countries), the degree Celsius scale is used for most temperature measuring purposes. The entire scientific world (the U.S. included) measures temperature using the Celsius scale and thermodynamic temperature using the kelvin scale. Many engineering fields in the U.S., especially high-tech ones, also use the kelvin and degrees Celsius scales. However, the United States is the last major country in which the degree Fahrenheit temperature scale is used by most lay people, industry, popular meteorology, and government. Other engineering fields in the U.S. also rely upon the Rankine scale (a shifted Fahrenheit scale) when working in thermodynamic-related disciplines such as combustion.
The other two temperature scale is Celsius and Kelvin.
Converting Fahrenheit to Celsius is: C = (F - 32) * 5/9
Therefore, C = (42 - 32) * 5/9 = 10 * 5/9 = 50/9 = 5.5
Converting Fahrenheit to Kelvin is: K = C + 273
Therefore, K = 5.5 + 273 = 278.5
There are 7.0 x 10^22 C2H5OH molecules in the sample.
Ethanol (also referred to as ethyl alcohol, grain alcohol, consuming alcohol, or actually alcohol) is an organic chemical compound. It is simple alcohol with the chemical system C2H6O. Its method can be also written as CH3−CH2−OH or C2H5OH (an ethyl team linked to a hydroxyl group) and is regularly abbreviated as EtOH. Ethanol is a volatile, flammable, colorless liquid with an attribute wine-like odor and pungent taste. It is a psychoactive drug, a leisure drug, and an energetic ingredient in alcoholic drinks.
Learn more about Ethanol here:
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<em>FeCl2</em><em> </em><em>+</em><em> </em><em>Na2CO3</em><em> </em><em>=</em><em> </em><em>FeCO3</em><em> </em><em>+</em><em> </em><em>2</em><em>N</em><em>a</em><em>C</em><em>l</em>
Answer:
ΔSmix,m = 5.7628 J/K.mol
Explanation:
mix: A + B
∴ nA = x mol A
∴ nB = y mol B
⇒ n mix = x + y = 1 mol
∴ P total = 1 bar
∴ T: constant
entropy of gases when mixing:
- ΔSmix = - nA*R*LnXA - nB*R*LnXB
∴ XA = x/1 = x
∴ XB = y/1 = y
⇒ ΔSmix = - x*R*Lnx - y*R*Lny
assuming: x = y = 0.5 mol
⇒ ΔSmix = - (0.5)(R)(- 0.693) - (0.5)(R)(- 0.693)
⇒ ΔSmix = (0.3465)(R) + (0.3465)(R)
⇒ ΔSmix = (0.6931)(R)
∴ R = 8.314 J/K.mol
⇒ ΔSmix,m = (0.6931)(8.314 J/K.mol)
⇒ ΔSmix,m = 5.7628 J/K.mol