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Gram is a unit of measure, for mass.
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Which mathematical relationship should you use to convert moles of a substance into grams?
Multiplication by what is called a conversion factor. A moles x (bbb grams / 1 mole) in which bbb is the molar mass of the substance.
What is the density of a substance that has a mass of 169 grams and a volume of 13 milliliters?
The density is 169/13= 13 grams/ml.
How many milliliters are in 3 grams?
"Gram" is a unit of mass, whereas "milliliter" is a unit of volume. The amount of volume that 3 grams of mass occupies depends on what substance it is. The relationship between the mass of a bit of some substance and the volume that bit occupies is called the "density" of the substance. They're all different.
What is difference between mass and weight?
Mass is the amount of matter in an object or substance. Weight is the amount of gravitational force on an object/substance. Mass will not change; the amount of matter will not fluctuate due to gravitational forces, so something that has a mass of 4 grams on earth will have a mass of 4 grams on the moon. But because the force of gravity is different, the weight of an object on the earth will weigh differently than the same object on the moon.
How many grams does a key have?
Density is a characteristic property of a substance.The density of a substance is the relationship between the mass of the substance and how much space it takes up (volume).
How many grams is in a half cup?
1 cup = 226,79 grams / 226,79 grams = 1 cup
How many cups equals 125 grams?
The density of the substance is required to convert volume to mass or mass to volume
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
The mass of a mole of a substance expressed in grams is called a?
molacular mass
Why is the average mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
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
Why is the average atomic mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
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.
What does the molar mass of an element or compound tell you?
How many grams of the substance are in a mole of the substance. The molar mass of Carbon, for example, is 12 g/mol. This means that every 6.02*10^23 atoms mass 12 grams.
