
How many grams of NaCl equal to a mole of NaCl?
Answer
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Hint To calculate the number of moles of a compound we should know the molecular weight of the particular compound. There is a formula to calculate the number of moles and it is as follows.
Number of moles =
Complete step by step answer:
- In the question it is asked to find how many grams of sodium chloride (NaCl) is equal to a mole of NaCl.
- The atomic weight of the sodium is 23 and the atomic weight of the chlorine is 35.5.
- Then the molecular weight of the sodium chloride (NaCl) = 23 + 35.5 = 58.5 g.
- In the question it is given that how many grams of NaCl is equal to one mole of sodium chloride.
- Substitute all the known values in the below formula to get the weight of the sodium chloride which is equal to one moles of the sodium chloride and it is as follows.
Number of moles =
Therefore 58.5 gm of sodium chloride is equal to one mole of sodium chloride.
Note: To know the molecular weight of the compound we have to add the molecular weights of the individual atoms present in the molecular formula of the compound. Atomic weight of the element is going to depend on the number of protons and neutrons present in the particular atom. Atomic weight of all the elements present in the periodic table are different because they contain different numbers of protons and neutrons in their nucleus.
Number of moles =
Complete step by step answer:
- In the question it is asked to find how many grams of sodium chloride (NaCl) is equal to a mole of NaCl.
- The atomic weight of the sodium is 23 and the atomic weight of the chlorine is 35.5.
- Then the molecular weight of the sodium chloride (NaCl) = 23 + 35.5 = 58.5 g.
- In the question it is given that how many grams of NaCl is equal to one mole of sodium chloride.
- Substitute all the known values in the below formula to get the weight of the sodium chloride which is equal to one moles of the sodium chloride and it is as follows.
Number of moles =
Therefore 58.5 gm of sodium chloride is equal to one mole of sodium chloride.
Note: To know the molecular weight of the compound we have to add the molecular weights of the individual atoms present in the molecular formula of the compound. Atomic weight of the element is going to depend on the number of protons and neutrons present in the particular atom. Atomic weight of all the elements present in the periodic table are different because they contain different numbers of protons and neutrons in their nucleus.
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