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What are the steps required to find the mass of an element from a given amount of the element in moles?
Wiki User
∙ 13y ago
Verified answer
The mass of 1 mole of the element is used as conversion factor to covert grams to moles. ~APEX
Anonymous
Wiki User
∙ 12y agoBy dividing the known mass by the Atomic Mass of the element, for most elements, or by the molecular mass for those elements known to form polyatomic molecules, such as H, N, O, F, Cl, Br, and I.
The molar mass is used as a conversion factor to convert grams to moles.
To find the mass of an element from a given amount in moles, you need to multiply the number of moles of the element by its molar mass. The molar mass is calculated by adding up the atomic masses of the elements in a compound. The result will give you the mass of the element in grams.
Wiki User
∙ 14y agomass (g)
------------------- = moles
molar mass (amu)
For example:
If you have five grams of NH3 , how many moles of the substance do you have?
Answer:
Molar mass of NH3 = 17.01 (approx)
5g
------------ = 0.294 moles
17.01 amu
a+ =207.2
Wiki User
∙ 11y agoCosidering the molar mass and the atomic weights of the elements.
Example: NaCl
Molar mass: 58,44247
Atomic weight of chlorine: 35,4527 (the mass of Cl in a mol of NaCl)
Atomic weight of sodium: 22,98977 (the mass of Na in a mol of NaCl)
Wiki User
∙ 9y agoEach element has a unique molar mass which is given in grams per mole. So if the amount of the substance in moles is known, then the mass in grams can be found by multiplying them together.
Wiki User
∙ 13y agoMultiply the number of moles by the molar mass (mass on the Periodic Table for each element)
Wiki User
∙ 7y ago1 mol of any element is the atomic weight expressed in grams.
Wiki User
∙ 15y ago# moles of element x (mass number of element in grams) = # g of element
Why is a graph of the amount of a particular element in moles versus the mass of element in grams is a straight like?
Because the relation is of proportionality.
What is the molar amount?
The molar amount refers to the number of moles of a substance present in a given sample. It is calculated by dividing the mass of the substance by its molar mass. Molar amount is typically expressed in moles.
Do you find the number of moles of an element?
To find the number of moles of an element, you need to divide the given mass of the element by its molar mass. The formula is: moles = mass / molar mass.
How do you convert an element to moles?
To convert an element to moles, you need to use the molar mass of the element, which is the mass of one mole of that element in grams. You can find the molar mass of an element on the periodic table. Once you have the mass of the element, you divide it by the molar mass to find the number of moles.
How would we know how many moles are in a certain element?
number of moles = mass of the element/molar mass of the element
Why are different amounts of each element required to react with the same amount of hydrogen?
Different amounts of each element are required to react with the same amount of hydrogen because each element has a different molar mass and reacts in different stoichiometric ratios. The stoichiometry of the reaction depends on the balanced chemical equation for the reaction, which determines the number of moles of each reactant needed to fully react with the given amount of hydrogen.
How is stoichiometry used to calculate amount of product from amount of reactant?
The coefficients give the ratio of moles reactant to moles product.
How many liters of oxygen is required for the combustion of 39 grams of liquid benzene?
To find the amount of oxygen required for the combustion of liquid benzene, you would need to balance the combustion reaction equation for benzene. Calculate the moles of benzene from the given mass, then use the stoichiometry of the balanced equation to determine the moles of oxygen required. Finally, convert the moles of oxygen to liters using the ideal gas law.
How is the mass in grams of an element converted to amount in moles?
1 mol of any element is the atomic weight expressed in grams.
Why is a graph of the amount of a particular element in moles versus the mass of element in grams is a straight like?
Because the relation is of proportionality.
Where can you find a solution to problem solving number of moles in a given element?
Number of moles = Mass of the sample in g/Molar mass in g
Do you find the number of moles of an element?
To find the number of moles of an element, you need to divide the given mass of the element by its molar mass. The formula is: moles = mass / molar mass.
How do you convert an element to moles?
To convert an element to moles, you need to use the molar mass of the element, which is the mass of one mole of that element in grams. You can find the molar mass of an element on the periodic table. Once you have the mass of the element, you divide it by the molar mass to find the number of moles.
How is the number of moles of an element determined froma known mass?
To determine the number of moles of an element from a known mass, you use the element's molar mass (grams per mole). Simply divide the given mass of the element by its molar mass to calculate the number of moles. This relationship is described by the formula: moles = mass (g) / molar mass (g/mol).
How many moles of beryllium chloride are required to completely react with 15 g of silver nitrate?
To determine the number of moles of beryllium chloride required to react with 15 g of silver nitrate, you first need to write the balanced chemical equation for the reaction between beryllium chloride (BeCl2) and silver nitrate (AgNO3). Then, use the molar ratio between the two reactants to calculate the moles of BeCl2 required to react completely with the given amount of AgNO3.
How do you calculate actual yield?
There's a stoichiometry problem for it:(given mass)*(1mol of given)*(# of moles of required)*(molar mass of required)---------------------------------------------------------------------------------(molar mass of given)*(# of moles of given) *(1mol of required)Given mass is the mass you are told, (say 2.0g of HCl) and the "given" is the component (HCl) that you were given the mass of. Required mass is the mass you are trying to find, or your actual yield, and the "required" is the component whose mass you are trying to find. Molar mass can be calculated using the Periodic Table. Add the atomic masses of each element in the component. (For example, the molar mass of HCl is approx. 36.5g).
How is the number of moles of an element determined from the known mass?
To determine the number of moles of an element from its known mass, you can use the formula: moles = mass / molar mass. First, find the molar mass of the element from the periodic table. Then, divide the given mass of the element by its molar mass to find the number of moles.
