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relative weight 65.59 grams=how many moles
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Can the number of moles of a substance be found by looking at a balanced equation?
yes the number of moles is the the number before the substance for example if the equation is balanced and you want to find H2O and it appears like 3H2O in the equation then their are 3 moles of H2O
The relative number of moles of hydrogen to moles of oxygen that react to form water represent what?
Mole Ratio
Do you find the number of moles of an element?
Use avagadro's number - states the number of atoms in 1 mole of a substance: 6.022 x 10^23
How is the mass in grams converted in to moles?
mol = mass/Mr If the Mr and number of moles of a substance is known then the mass can be calculated. example:- if we have 1 mole of Na, how many grams do we have? mass = mol x Mr mass = 1 x 23 mass = 23g
How many moles are there in Venus?
The number of moles on Venus is not known as moles are a unit of measurement used in chemistry to express the amount of a substance. They are not applicable to celestial bodies.
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
What is mole percent?
Mole percent, or molar percent of a substance is the ratio of the moles of a substance in a mixture to the moles of the mixture. It represents the number of moles of a substance in a mixture as a percentage of the the total number of moles in the mixture. Mole % = (mol substance in a mixture) / (mol mixture) * 100
Can the number of moles of a substance be found by looking at a balanced equation?
yes the number of moles is the the number before the substance for example if the equation is balanced and you want to find H2O and it appears like 3H2O in the equation then their are 3 moles of H2O
The relative number of moles of hydrogen to moles of oxygen that react to form water represent what?
Mole Ratio
Can you determine the number of moles of any substance produced in a reaction if you know the number of moles of at least two of the reactants?
Yes, it is possible.
The relative number of moles of hydrogen to moles of oxygen that react to form water represents what?
The ratio H/O is 2.
How many moles are in 1.5 grams of iron?
To calculate the number of moles from grams, you must divide by the substance's molar mass
Where does the mole ratio between two chemicals come from?
Mole ratio is the number of moles of a substance divided by the total number of moles of all substances present, times 100.
What information does the coefficient provide in a chemical reaction?
It tells you the number of molecules or number of moles of each substance.
Using the periodic table what is the mass of 2 moles of copper?
The relative atomic mass of an element is the mass in grams of 1mole of the substance. The relative atomic mass of copper is 63.5 2x63.5 = 127g
How many moles of water were lost if the amount of water lost was 0.293 grams?
To find the number of moles of a substance the following equation could be used. n=m/M where n- number of moles m- mass of substance M- molar mass of the substance. Molar mass of water = 18 g mol-1 Accordingly, the number of moles of water lost = 0.293 g /18 g mol-1 = 0.0163 mol
Grams to formula units?
It depends on the substance and its molar mass.In order to convert from grams to formula units, you must first convert grams to moles, then moles to formula units (grams --> moles --> formula units).1. Divide the mass (g) of the given substance by the substance's molar mass.2. Multiply the number of moles found in Step 1 (above) by Avogadro's number (6.022 x 1023).---- Mass substance ----- X 6.022 x 1023 formula unitsMolar mass substanceCONVERSION FACTORMass (g) substance x 1 mol substance ------- x ----- Avogadro's number/////////////////// molar mass (g) substance ------------ 1 mol substance
