0
Na = 23
S= 32
O= 16
Therefore : Na2SO4 = (23×2) +32+(16×4) =
46+32+64=142g/mol
What else can I help you with?
How can one determine velocity from momentum?
To determine velocity from momentum, you can use the formula: momentum mass x velocity. By rearranging the formula, you can solve for velocity by dividing momentum by mass. This will give you the velocity of an object based on its momentum and mass.
How do you determine mass using momentum and velocity?
You can determine mass using momentum and velocity by using the formula: momentum = mass x velocity. Rearrange the formula to solve for mass as mass = momentum/velocity. Plug in the values for momentum and velocity to calculate the mass.
How can one determine velocity using momentum?
To determine velocity using momentum, you can use the formula: momentum mass x velocity. Rearrange the formula to solve for velocity: velocity momentum / mass. By dividing the momentum by the mass of the object, you can calculate its velocity.
How can one determine the velocity of the center of mass of a system of particles?
To determine the velocity of the center of mass of a system of particles, you can use the formula: velocity of center of mass (total momentum of the system) / (total mass of the system). This formula takes into account the individual velocities and masses of all the particles in the system.
How can one determine the friction force when given the mass and acceleration of an object?
To determine the friction force when given the mass and acceleration of an object, you can use the formula: friction force mass x acceleration. This formula helps calculate the force resisting the motion of the object due to friction.
What is the formula for sodium sulphide?
The formula is Na2SO3 , because Na have 1 valence electrone and SO3 is a polyatomic with 2 valence electrons so u cross multiply Na1 * SO3(2) =Na2SO3
What is the chemical formula for Soduim sulfite?
Na2SO3.
What is the empirical formula for sodium sulfite?
The empirical formula for sodium sulfite is Na2SO3. This formula represents the simplest whole number ratio of atoms of each element in the compound.
What information is needed to determine molecular formula?
the empirical formula and the molar mass
What are the formula units for sodium sulfide sodium sulfite and sodium sulfate?
Sodium sulfide: Na2S Sodium sulfite: Na2SO3 Sodium sulfate: Na2SO4
How can one determine the molar mass of an empirical formula?
To determine the molar mass of an empirical formula, you need to calculate the sum of the atomic masses of all the elements in the formula. This can be done by multiplying the atomic mass of each element by the number of atoms of that element in the formula, and then adding up all the results.
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 can one determine the number of moles in a substance using the formula for finding moles?
To determine the number of moles in a substance, you can use the formula: moles mass / molar mass. Simply divide the mass of the substance by its molar mass to find the number of moles.
To determine the subscript of an element in a molecular formula the empirical mass must be multiplied by the actual mass?
The actual mass must be divided by the empirical mass. This was derived from the following equation: (subscript)(empirical formula) = (molecular formula) subscript = (molecular formula)/(empirical formula)
How can one determine velocity from momentum?
To determine velocity from momentum, you can use the formula: momentum mass x velocity. By rearranging the formula, you can solve for velocity by dividing momentum by mass. This will give you the velocity of an object based on its momentum and mass.
How do you determine mass using momentum and velocity?
You can determine mass using momentum and velocity by using the formula: momentum = mass x velocity. Rearrange the formula to solve for mass as mass = momentum/velocity. Plug in the values for momentum and velocity to calculate the mass.
How does one determine a molecule formula from the empirical formula?
The density or some other information must be given that allow you to find the molar mass. Calculate the empirical formula mass. Divide molar mass by empirical formula mass. This answer is multiplied by all subscripts of the empirical formula to get the molecular formula.
