The correct answer should be 1500 K. I hope I helped.
The minerals that one might be examining if you place some hydrochloric acid on a sample and it fizzes are Calcite and Dolomite.
Calcite and dolomite are very similar minerals. Both have the same hardness, the same rhombohedral cleavage, and are found in identical geologic settings. The best way to tell one from the other is the acid test; A drop of 1 M HCl on calcite produces an instant , obvious Fizz; a drop on dolomite produces slow or no obvious bubbling.
Hey there!
Consider 100 g of solution:
Mass of NaCl = 3.50% of mass of seawater
( 3.50 / 100 ) * 100 => 3.50 g
Number of moles as shown below:
Molar mass NaCl = 58.44 g/mol
n = Mass / molar mass
n = 3.50 / 58.44 => 0.059 moles of NaCl
Mass of sweater:
Mass of solution - Mass of NaCl
100 - 3.50 = 96.5 g
96.5 g in Kg :
96.5 / 1000 => 0.0965 Kg
Therefore ,calculate molality by using the following formula:
molality = number of moles of solute / mass of solution
molality = 0.059 / 0.0965
molality = 0.61 m
Hope That helps!
Answer:
In the given case, the pepper flakes are considered virus particles. One of the applications of the principle of "like dissolves like" is the behavior of hand sanitizers and soaps. The polar molecules like alcohols comprise -OH as the functional groups, which are fascinated towards the water, thus, producing robust intermolecular associations. In comparison, the nonpolar molecules like fats and oils, proteins comprise hydrocarbon groups, which are hydrophobic to water.
The active constituents of both hand sanitizers and soaps show the features of both nonpolar and polar regions in their molecular compositions. As a consequence, part of the molecule is fascinated by water, while some parts are attracted towards organic molecules like fats and proteins.
The virus particles are enveloped with different kinds of proteins and fats, so when soaps and hand sanitizers come in contact with the virus, the nonpolar regions of sanitizers and soaps get fascinated towards the coating, and efficiently pulls apart the virus composition.
In the given case, one can model the principle by assuming pepper flakes as virus particles, which are coated with fats and proteins, and thus are insoluble in water. After this, one can simultaneously see the effect of soaps and sanitizers by using them one by one.
The physical explanation is that increasing temperature increases the kinetic energy of the gas molecules. Hence, their random motion breaks more intermolecular bonds and the gas is less dissolved in the solvent. In contrast, solid solutes in water have increased solubility with increased temperatures.
