0
Why is the average mass used when calculating grams of a substance?
Wiki User
∙ 11y ago
the elements in the substance are mixtures of their isotopes
Mark Greenholt
Add your answer:
Earn +20 pts
Why is the average atomic mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
Is molar mass is mass in grams of one kilogram of any pure substance?
False
What is the average mass of a single silicon atom in grams?
The average mass of a single silicon atom in grams is the ratio 28,085/6,022140857.10e23.
What is the mass of a 25 ml graduated cylinder?
If a solid that has a mass of 25 grams melts, it should result in a _______ with a mass of _______ grams.
What unit do chemists use to measure the amount of substance since they cant ohysically count the pieces in that substance?
They measure the mass, usually in grams or milligrams, but any "type" of gram is possible. For example, the molar mass of a substance is the mass of one mole of that substance in grams. We can't count the individual particles, but we can measure the molar mass on a balance.
Why is the average atomic mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
How do you atoms to grams?
You find the number of atoms from the number of grams of a given substance by:Find the Moles of the Substance by multiplying the grams of the substance by the molar mass of the substance. ( Molar mass equals mass of substance per 1 mole of substance.)Grams x Molar Mass of Substance = Moles of SubstanceTake the moles of the substance and multiply it by Avogadro's Number (the number of atoms in 1 mole of substance, or simply 6.022x1023).Moles of Substance x Avogadro's Number (6.022x1023) = atoms of Substance
How many moles of barium are present in a sample having a mass of 22.3 grams?
# of moles = grams of substance / molar mass of substance molar mass of Barium =137.33 grams/mole #moles of Barium = 22.3 grams/ 137.33 grams/mole = 0.162382582 moles
What mass of substance is required in grams?
Gram is a unit of measure, for mass.
How would you go about calculating the average mass of silver?
The atomic mass of silver is 107.
The mass of a mole of a substance expressed in grams is called a?
molacular mass
how do we measure how much of a substance we have?
Molar mass of a substance is the mass of one mole of the substance in grams. It has a unit of grams per mole (g mol -1). One mole of any substance contains 6.02 × 10 23 particles. Therefore, the molar mass of a substance contains 6.02 × 10 23 particles of the substance.
Is molar mass is mass in grams of one kilogram of any pure substance?
False
What is the average mass of a single silicon atom in grams?
The average mass of a single silicon atom in grams is the ratio 28,085/6,022140857.10e23.
What is the mass of a 25 ml graduated cylinder?
If a solid that has a mass of 25 grams melts, it should result in a _______ with a mass of _______ grams.
Why is stoichiometry used for?
Calculating the mass of a product from the number of moles of reactants APEX
What unit do chemists use to measure the amount of substance since they cant ohysically count the pieces in that substance?
They measure the mass, usually in grams or milligrams, but any "type" of gram is possible. For example, the molar mass of a substance is the mass of one mole of that substance in grams. We can't count the individual particles, but we can measure the molar mass on a balance.
