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What is the weight average molecular weight of the compound in question?
The weight average molecular weight of the compound is the average of the molecular weights of all the molecules in the sample, weighted by their relative abundance.
What is the molecular weight of a liquid sample?
The molecular weight of a liquid sample is determined by the mass of its molecules, typically expressed in grams per mole (g/mol). It can be calculated by adding the atomic weights of all the atoms in a molecule based on its chemical formula. To obtain the molecular weight of a liquid, one may also use techniques such as mass spectrometry or vapor pressure osmometry. The molecular weight is crucial for understanding the sample's properties, behavior in reactions, and interactions with other substances.
Is the original water liquid sample a compound an element a heterogeneous mixture or a homogeneous mixture?
Water (H2O) is a chemical compound.
When a sample of liquid is cooled its thermal energy?
When a sample of liquid is cooled its thermal energy goes to its surroundings
When a sample of liquid boils thermal energy increases or decreases?
When a sample of liquid boils, thermal energy increases. This added thermal energy allows the molecules to overcome intermolecular forces and transition from the liquid phase to the gas phase. As a result, the temperature of the liquid remains constant during the boiling process, even though energy is being supplied.
Explain by kinetic molecular theory why ice is more dense then water vapours?
By looking at the states of matter ( solid ,liquid or gas) we can determine that a giben sample will have how much energy. Molecules in solid have least kinetic energy. Molecules in vapor (gas) have highest kinetic energy. Liquids have moderatee kinetic energy.
When a sample of liquid is cooled then what happens to the thermal energy?
When a sample of liquid is cooled, its thermal energy decreases as the molecules lose kinetic energy and move more slowly. This reduction in thermal energy can lead to a decrease in temperature and may eventually cause the liquid to solidify if cooled sufficiently. The lost thermal energy is typically transferred to the surrounding environment.
A sample of a compound contain 1.52 g of Nitrogen and 3.47 g of Oxygen. The molar mass of this compound is between 90 grams and 95 grams. Determine molecular formula and the accurate molar mass.?
A sample of a compound contain 1.52 g of Nitrogen and 3.47 g of Oxygen. The molar mass of this compound is between 90 grams and 95 grams. The molecular formula and the accurate molar mass would be N14O35.
How to find the percent by mass of a compound in a given sample?
To find the percent by mass of a compound in a given sample, you need to divide the mass of the compound by the total mass of the sample and then multiply by 100. This will give you the percentage of the compound in the sample.
What happens to a sample of matter when its particles lose kinetic energy?
A loss of kinetic energy in the atoms or molecules of a sample of matter will result in the cooling of the sample. That sample will get colder as remove thermal energy from it. The atoms/molecules of a substance have kinetic energy associated with them. This kinetic energy is the result of atomic and/or molecular motion. As a sample of matter cools, the atoms and/or molecules will lose mobility. Loss of mobility and vibrational energy, which are forms of kinetic energy, will become apparent when thermal energy is removed from the sample.
Compared to the particles in a hardened lava sample the particles in a liquid lava sample?
The particles in a hardened lava sample will be solidified and compacted, while the particles in a liquid lava sample will be molten and in a flowing state. The hardened lava particles will have a crystalline structure, whereas the liquid lava particles will lack a fixed arrangement due to their high temperature.
How much energy flow is involved when changing a sample of water from a liquid to a gaseous?
google "water heat of vaporization"
