Calculate the number of moles in 3.20 g of each of the following:
C6H8O6, vitamin C
Express your answer in moles
To calculate the number of moles, we need to use the formula:
Number of moles = Mass (g) / Molar mass (g/mol)
1. C6H8O6 (Vitamin C):
The molar mass of C6H8O6 can be calculated by multiplying the atomic masses of each individual element by the number of atoms present in the formula and summing them up.
Molar mass of C = 12.01 g/mol (1 Carbon atom)
Molar mass of H = 1.01 g/mol (8 Hydrogen atoms)
Molar mass of O = 16.00 g/mol (6 Oxygen atoms)
Molar mass of C6H8O6 = (6 * 12.01) + (8 * 1.01) + (6 * 16.00) = 72.06 + 8.08 + 96.00 = 176.14 g/mol
Now, we can calculate the number of moles:
Number of moles = 3.20 g / 176.14 g/mol ≈ 0.0182 moles
Therefore, the number of moles in 3.20 g of Vitamin C is approximately 0.0182 moles.
Note: It is essential to round the final answer to the appropriate number of significant figures, depending on the given data.
To calculate the number of moles in a substance, we need to use the formula:
moles = mass / molar mass
First, let's find the molar mass of C6H8O6 (vitamin C).
To find the molar mass, we add up the atomic masses of all the elements in the compound.
C: 6 atoms x atomic mass of carbon (12.01 g/mol) = 72.06 g/mol
H: 8 atoms x atomic mass of hydrogen (1.01 g/mol) = 8.08 g/mol
O: 6 atoms x atomic mass of oxygen (16.00 g/mol) = 96.00 g/mol
Total molar mass of C6H8O6 = 72.06 + 8.08 + 96.00 = 176.14 g/mol
Now we can calculate the number of moles:
moles = 3.20 g / 176.14 g/mol
Using a calculator, this equals approximately 0.0182 moles (rounded to four decimal places).
Therefore, there are approximately 0.0182 moles of C6H8O6 (vitamin C) in 3.20 g.
To calculate the number of moles in a substance, you need to use its molar mass. The molar mass is the mass of one mole of that substance, expressed in grams per mole (g/mol).
In this case, we are given the mass of the substance, which is 3.20 g of C6H8O6 (vitamin C).
To calculate the number of moles, we need to determine the molar mass of C6H8O6. The molar mass can be calculated by adding up the atomic masses of each element in the chemical formula.
The atomic masses of carbon (C), hydrogen (H), and oxygen (O) are approximately 12 g/mol, 1 g/mol, and 16 g/mol, respectively.
Now, let's calculate the molar mass of C6H8O6:
(6 × 12 g/mol) + (8 × 1 g/mol) + (6 × 16 g/mol) = 72 g/mol + 8 g/mol + 96 g/mol = 176 g/mol
Thus, the molar mass of C6H8O6 is 176 g/mol.
Now, we can use this molar mass to calculate the number of moles:
3.20 g ÷ 176 g/mol = 0.0182 moles (rounded to four decimal places)
Therefore, the number of moles in 3.20 g of C6H8O6 (vitamin C) is approximately 0.0182 moles.