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To find the percent of oxygen by mass in trinitrotoluene (TNT), you need to know the molecular formula of TNT. TNT contains 30.4% oxygen by mass, so in 0.370 kg of TNT, the mass of oxygen would be 0.370 kg * 0.304 = 0.11248 kg. To convert this to a percentage, divide the mass of oxygen by the total mass of TNT (0.370 kg) and multiply by 100 to get 30.4%.
Trinitrotolune, TNT, has the molecular formula of C7H5N3O6, so in one molecule of TNT there are 21 atoms. Of course, the number of atoms will change as the amount of TNT changes.
To find the mass of an atom you divide the constant known as Avagadro's number 6.022X10^23 by the amu of an element. So lets take oxygen for example. The amu of Oxygen is " 15.99" , so you would divide 15.99 by 6.022X10^23. By doing this you will get the mass of one Oxygen atom.
The mass of one molecule of SH₂ (hydrogen sulfide) can be calculated using the atomic masses of its constituent atoms: sulfur (S) has an atomic mass of approximately 32.07 amu, and hydrogen (H) has an atomic mass of about 1.01 amu. Therefore, the molecular mass of SH₂ is approximately 32.07 + (2 × 1.01) = 34.09 amu. This value represents the mass of a single SH₂ molecule in atomic mass units (amu).
The mass of one mole of substance, usually in grams or kilograms
- calculate the molecular mass of the substance from the atomic weights of the contained elements - 1 molecule gram of any substance contain 6,023 141 79.1023 molecules (Avogadro number) - mass of a single molecule is: Molecular mass in grams/Avogadro number
To find the percent of oxygen by mass in trinitrotoluene (TNT), you need to know the molecular formula of TNT. TNT contains 30.4% oxygen by mass, so in 0.370 kg of TNT, the mass of oxygen would be 0.370 kg * 0.304 = 0.11248 kg. To convert this to a percentage, divide the mass of oxygen by the total mass of TNT (0.370 kg) and multiply by 100 to get 30.4%.
The mass of a hydrogen molecule is greater than that of a single hydrogen atom because a hydrogen molecule consists of two hydrogen atoms bonded together. When two hydrogen atoms bond to form a molecule, they share electrons, resulting in a decrease in the individual mass of each atom. However, the total mass of the molecule is slightly higher due to the binding energy that holds the atoms together.
A cubic meter of TNT has a mass of about 1650 kg.
The molar mass of sulfur trioxide (SO3) is approximately 80.07 grams per mole. This means that a single sulfur trioxide molecule has a mass of about 80.07 atomic mass units.
Trinitrotolune, TNT, has the molecular formula of C7H5N3O6, so in one molecule of TNT there are 21 atoms. Of course, the number of atoms will change as the amount of TNT changes.
Mass
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
To find the mass of an atom you divide the constant known as Avagadro's number 6.022X10^23 by the amu of an element. So lets take oxygen for example. The amu of Oxygen is " 15.99" , so you would divide 15.99 by 6.022X10^23. By doing this you will get the mass of one Oxygen atom.
the term gram molecule was used in chemistry and this unit is used to measure a single molecule in gram molecule.
It is not typical to refer to the weight of literally a single molecule (one nitrogen and four hydrogens) but to a "mol" or 6.022 x 10^23 molecules. But, if that is actually what you mean, the mass of a single molecule of NH4 can be determined like this. [(molar mass N x 1) + (molar mass H x 4)] / (6.022 x 10^23) that will give you the answer in grams. [(14.01)+(1.01 x 4)]/(6.022 x 10^23) = (18.05)/(6.022 x 10^23) grams i don't have a calculator, plug it in and you've got it! It is not typical to refer to the weight of literally a single molecule (one nitrogen and four hydrogens) but to a "mol" or 6.022 x 10^23 molecules. But, if that is actually what you mean, the mass of a single molecule of NH4 can be determined like this. [(molar mass N x 1) + (molar mass H x 4)] / (6.022 x 10^23) that will give you the answer in grams. [(14.01)+(1.01 x 4)]/(6.022 x 10^23) = (18.05)/(6.022 x 10^23) grams i don't have a calculator, plug it in and you've got it!
The grand formula mass is the sum of the masses of all the atoms in a single molecule of a compound, including all elements present in that compound. It is calculated by adding up the atomic masses of each element involved in the molecule.