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the elements in the substance are mixtures of their isotopes
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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 average atomic mass used when calculating grams of a substance?
The average atomic mass is the weighted average of the atomic masses of an element's isotopes, measured in atomic mass units (amu). When calculating grams of a substance, this value is typically expressed in grams per mole (g/mol), which corresponds to the mass of one mole of that substance. For example, the average atomic mass of carbon is approximately 12.01 g/mol, meaning one mole of carbon weighs about 12.01 grams. This allows for conversions between moles and grams in chemical calculations.
Is molar mass is mass in grams of one kilogram of any pure substance?
No, molar mass is the mass in grams of one mole of a substance. One mole is equal to the molecular weight of the substance in grams.
A 10 ml sample of a substance has a mass of 20 grams what would be the mass of a 200 ml sample of the same substace?
The mass of the substance is 20 grams in a 10 ml sample. Therefore, the substance has a density of 2 grams/ml. For a 200 ml sample of the same substance, the mass would be 400 grams (200 ml x 2 grams/ml).
What is the grams-moles conversion?
The grams-moles conversion is the process of converting a mass measured in grams into the number of moles of a substance. This is done using the formula: moles = mass (grams) / molar mass (grams per mole). The molar mass is the mass of one mole of a substance, which can be found on the periodic table for elements or calculated for compounds. This conversion is essential in chemistry for stoichiometric calculations and reactions.
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 average atomic mass used when calculating grams of a substance?
The average atomic mass is the weighted average of the atomic masses of an element's isotopes, measured in atomic mass units (amu). When calculating grams of a substance, this value is typically expressed in grams per mole (g/mol), which corresponds to the mass of one mole of that substance. For example, the average atomic mass of carbon is approximately 12.01 g/mol, meaning one mole of carbon weighs about 12.01 grams. This allows for conversions between moles and grams in chemical calculations.
Is molar mass is mass in grams of one kilogram of any pure substance?
No, molar mass is the mass in grams of one mole of a substance. One mole is equal to the molecular weight of the substance in grams.
What is the molar mass of a substance in amu grams per mole?
The molar mass of a substance is the mass of one mole of that substance, measured in atomic mass units (amu) or grams per mole.
The mass of a mole of a substance expressed in grams is called a?
The mass of a mole of a substance expressed in grams is called the molar mass. This value is numerically equal to the atomic or molecular weight of the substance and is expressed in units of grams per mole.
An experiment calls for 0.25 kg of a substance. What mass of the substance is required in grams Do not use scientific notation in your answer.?
To convert kilograms to grams, you multiply the mass in kilograms by 1,000, since there are 1,000 grams in a kilogram. Therefore, 0.25 kg of the substance is equal to 0.25 × 1,000 grams, which is 250 grams. Thus, the required mass of the substance is 250 grams.
What is the molar mass of the substance, expressed in grams per mole (g/mol)?
The molar mass of a substance is the mass of one mole of that substance, expressed in grams per mole (g/mol).
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
Is the molar mass of a substance measured in daltons equivalent to its mass in grams per mole?
Yes, the molar mass of a substance measured in daltons is equivalent to its mass in grams per mole.
What mass of substance is required in grams?
To determine the mass of a substance required in grams, you need to know the substance's molar mass (in g/mol) and the amount needed in moles. You can then use the formula: mass (g) = number of moles × molar mass (g/mol) to calculate the required mass in grams.
What units do we use for mass when calculating specific heat capacity?
We typically use grams (g) or kilograms (kg) for mass when calculating specific heat capacity.
How can one determine the number of moles present in a substance based on its mass?
To determine the number of moles in a substance based on its mass, you can use the formula: moles mass (in grams) / molar mass (in grams per mole). This formula helps you calculate the amount of substance in moles by dividing the mass of the substance by its molar mass.
