The relative formula mass of ethanol (C2H5OH) is 46 g/mol.
The molar mass of copper (Cu) is 63.55 g/mol. To calculate the mass of 0.139 moles of copper, you can use the formula: mass = moles × molar mass. Therefore, the mass of 0.139 moles of copper is 8.82 grams.
The relative formula mass of a hydrogen molecule (H2) is calculated by adding the atomic masses of the two hydrogen atoms. Each hydrogen atom has an atomic mass of approximately 1, so the relative formula mass of a hydrogen molecule is 2.
The formula mass of copper(II) fluoride (CuF2) can be calculated by adding the atomic masses of copper and two fluorine atoms. The atomic mass of copper is approximately 63.55 g/mol, and the atomic mass of fluorine is approximately 19.00 g/mol. Therefore, the formula mass of copper(II) fluoride is (1 x 63.55) + (2 x 19.00) = 101.55 g/mol.
The relative formula mass of iron sulfate is 151.85 g/mol. It is calculated by adding the atomic masses of all the elements in the compound, which are iron (Fe), sulfur (S), and oxygen (O).
The relative atomic mass of copper is approximately 63.55. To calculate the relative formula mass of copper, you sum the atomic masses of its atoms, which in this case would just be the atomic mass of copper. Therefore, the relative formula mass of copper would be 63.55.
The relative formula mass of iodine is 253.8 g/mol.
The relative atomic mass of Cu (copper) is approximately 63.55. This value is based on the average atomic mass of naturally occurring copper isotopes.
The RFM (Relative Formula Mass) of 3Cu (copper atoms) is calculated by multiplying the atomic mass of copper (Cu) by the number of atoms. The atomic mass of copper is approximately 63.55 g/mol. So, the RFM of 3Cu is 3 * 63.55 = 190.65 g/mol.
The relative formula mass of ethanol (C2H5OH) is 46 g/mol.
Copper (Cu) has a relative atomic mass because it is an average value that considers the different isotopes of copper and their abundance in nature. The relative atomic mass provides a more accurate representation of the average mass of an atom of copper compared to using just the mass number of the most abundant isotope.
The molar mass of copper (Cu) is 63.55 g/mol. To calculate the mass of 0.139 moles of copper, you can use the formula: mass = moles × molar mass. Therefore, the mass of 0.139 moles of copper is 8.82 grams.
The chemical formula is (NO3)-; the mass is 62 g.
The relative formula mass of a hydrogen molecule (H2) is calculated by adding the atomic masses of the two hydrogen atoms. Each hydrogen atom has an atomic mass of approximately 1, so the relative formula mass of a hydrogen molecule is 2.
The atomic mass of copper (Cu) is approximately 63.546 g/mol. Therefore, the mass of 2 moles of copper would be around 127.092 g (63.546 g/mol x 2 mol).
The relative formula mass of lead oxide (PbO) is calculated by adding the atomic masses of the elements in the formula. The atomic mass of lead (Pb) is 207.2 g/mol, and the atomic mass of oxygen (O) is 16.0 g/mol. Therefore, the relative formula mass of lead oxide is 207.2 + 16.0 = 223.2 g/mol.
The relative formula mass of a molecule of hydrgoen is two (2 x 1).