0
Molecular volume is used in parachor calculations because it considers the actual space occupied by the molecules themselves, taking into account their shape and size. This is important for predicting intermolecular interactions. Molar volume, on the other hand, is a bulk property that does not provide the same level of detail for such calculations.
What else can I help you with?
3 L of a gas weighs 2 g What is the molecular mass?
3 L / 22.414 /mole = 0.1338 moles of the gas 2 g is 0.1338 moles, or 2/0.1338 = 14.948 g/mole is the molecular weight. ( no real gas this light...methane is closest at 16 g/mole)
What is the molecular formula of dicyclohexyl if its molar mass is 200 grams?
Dicyclohexyl chemical formula is C12H22 and the molecular weight is 166,3031 (not 200).
What does molar volume mean for a gas?
Molar gas volume is the volume of ONE moel of gas. It only depends on the pressure and temperature, not on the kind of gas. Molar volume at standard temperature and standard pressure is always 22,4 Litres (for any gas)
What is the molecular formula for the unknown C3H5O?
Empirical formula = C3H5O Molar mass of empirical formula = 3(12.01)+5(1.008)+1(16) = 57.07 Molar mass of molecular fomula = 114.15 n = Molar mass of molecular fomula/Molar mass of empirical formula = 114.15/57.07 n = 2 Molecular formula = n(empirical formula) Molecular formula = 2(C3H5O) = C6H10O2 Check: 6(12.01)+10(1.008)+2(16)= 114.14
What is the molecular formula of a molecule with a molar mass of 122.0367?
C7h6o2
What is parachore and its effect in chemistry?
Parachor is a quantity relating the surface tension to the molecular weight and density. It is defined by the formula (surface tension ^1/4) * M / d. Parachor is used in solving structural problems. Sugden defined in 1924 parachor as (surface tension in mN/m)^(1/4).(molar volume in cm^3/mol). This definition is used up to now and it results in usual parachor values of the order of magnitude of 100. Therefore, parachor is a derived quantity like any other and its unit is (mN/m)^(1/4).cm^3/mol. This unit is so bizare in the light of usual experience that most authors do not dare give it in their texts and prefer not to give any unit. Owing to this fact, there has arisen the mistaken impression that the parachor has no unit. S. Sugden, J. Chem. Soc. Trans. 125 (1924) 1167--1177, from contemporary literature see M. Souckova et al. J. Chem. Thermodynamics 83 (2015) 52-60
How do you calculate density from molecular weight?
Density can be calculated from molecular weight using the formula density = (molecular weight) / (molar volume). Molar volume is the volume occupied by one mole of the substance and can be calculated using the ideal gas law or experimental data. Dividing the molecular weight by the molar volume gives the density of the substance.
Difference between parachor and rheochor?
parachor is depend on the surface tention of the liquid and its molar volume rheocor is depend upoun the viscosity of a liquid . both are additive and constiitutive property.
What is molar quantity?
Molecular weight (unit) of salt dissolved in liter (unit) volume of water.
What is parachor and its uses?
Sugden defined in 1924 parachor as P=(surface tension in mN/m)^(1/4).(molar mass in g/mol).(density in g/cm^3), which is equivalent to (surface tension in mN/m)^(1/4).(molar volume in cm^3/mol). This definition is used up to now and it results in usual parachor values of the order of magnitude of 100. Therefore, parachor is a derived quantity like any other and its unit is (mN/m)^(1/4).cm^3/mol. This unit is so bizare in the light of usual experience that most authors do not dare give it in their texts and prefer not to give any unit. Owing to this fact, there has arisen the mistaken impression that the parachor has no unit. Sugden showed empirically that P is additive with respect to the composition of molecules of compounds from different atoms and atomic groups. As a result, when the values of the contributions to parachor from the individual atomic groups of molecules are known the surface tension of substances can be evaluated from their molecular structure. S. Sugden, J. Chem. Soc. Trans. 125 (1924) 1167--1177, from contemporary literature see M. Souckova et al. J. Chem. Thermodynamics 83 (2015) 52-60
How do I convert molar concentration to grams?
grams divided by the molecular weight to get to moles moles divided by volume to get molarity
How do you calculate the molar volume of a substance?
To calculate the molar volume of a substance, you divide the volume of the substance by the number of moles present. This can be done using the formula: Molar Volume Volume / Number of Moles.
What is molar atomic mass?
The atomic (molecular) weight of a substance is its molar mass.
3 L of a gas weighs 2 g What is the molecular mass?
3 L / 22.414 /mole = 0.1338 moles of the gas 2 g is 0.1338 moles, or 2/0.1338 = 14.948 g/mole is the molecular weight. ( no real gas this light...methane is closest at 16 g/mole)
What is the molecular formula of a compound with the empirical formula NH2Cl and molar mass of 51.5g mol?
The empirical formula NH2Cl has a molar mass of 51.5 g/mol, so the molecular formula can be determined by finding the ratio of the molar mass of the molecular formula to the molar mass of the empirical formula. The molecular formula of the compound is therefore NH2Cl2.
How does one determine a molecular formula from the empirical form?
molar mass of unknown/molar mass of empirial = # of empirical units in the molecular formula. Example: empirical formula is CH2O with a molar mass of 30. If the molar mass of the unknown is 180, then 180/30 = 6 and molecular formula will be C6H12O6
How do you make molar solutions?
To make a molar solution, you need to dissolve the molecular weight of a substance in one liter of solvent. This is done by measuring the amount of substance needed based on its molar mass and then adding it to the solvent until it reaches a final volume of one liter.
