<u>538.73 g</u> is the mass of 5.85 mol of glycerol (C₃H₈O₃)
<h3>What is glycerol?</h3>
Glycerol is a simple polyol chemical, usually known as glycerine in British English and glycerin in American English. It is a sweet-tasting, colourless, odourless, viscous liquid that is non-toxic. Glycerides, a class of lipids, contain the glycerol backbone.
It is frequently utilised in FDA-approved wound and burn therapies due to its antibacterial and antiviral characteristics. On the other hand, it can also serve as a medium for bacterial cultivation. It can be used as a reliable indicator of liver illness.
Additionally, it is employed temporarily in the food sector as a sweetener and in drug formulations as a humectant. Glycerol is hygroscopic in nature and miscible with water due to its three primary hydroxyl groups.
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Answer:
Graphite is soft because it has weak inter molecular forces between its layers.
If we dry the hydrate then, what will remain is the amount of salt, all of the water will evaporate. We are then able to determine the masses of the salt and water and consequently be able to determine the number of moles by dividing the masses by the molar mass. Then, solve for the mole ratio.
The melting point of the solid form of water, which is ice, is 0°C. When we convert both temperatures to kelvin by adding 273 to each we get the melting point of copper as 1357K and that of ice is 273K. Then, dividing the melting point of copper by the melting point of ice, both in absolute temperature scale. The answer would be 4.97. Thus, the energy of molecules of copper is approximately 5 times compared to that of water.
Answer:
Mass = 28.59g
Explanation:
Q = 952J
Change in temperature = 37.0°C
Specific heat capacity = 0.90J/g°C
Mass = ?
Heat Energy (Q) = mc∇T
Q = heat energy
M = mass of substance
C = specific heat capacity of substance
∇T = change in temperature of substance
Q = mc∇T
952 = m × 0.90 × 37
952 = 33.3m
Solve for m
M = 952 / 33.3
M = 28.59g
The mass of aluminium required to use a heat energy of 952J is 28.59g