The Atomic Mass of silver is 107.
The average atomic mass of silver is approximately 107.87 atomic mass units.
the elements in the substance are mixtures of their isotopes
the elements in the substance are mixtures of their isotopes
You can determine if a coin is not pure silver by calculating its density and comparing it to the known density of pure silver. If the calculated density of the coin does not match that of pure silver, then it is not pure silver. Density can be calculated by dividing the mass of the coin by its volume.
The average atomic mass of an element is closest to the mass number of the most abundant isotope of that element. This is because the average atomic mass takes into account the relative abundance of each isotope when calculating the overall mass.
Isotopes - that same element with a different atomic weight.
The atomic mass of an element is determined by calculating the weighted average of the masses of its isotopes, taking into account their relative abundance.
The compound is silver nitrate (AgNO3). By calculating the molar mass of the compound, which is 169.91 g/mol, we can determine the molecular formula. The molar mass of silver is 107.87 g/mol, nitrogen is 14.01 g/mol, and oxygen is 16.00 g/mol. The molar mass of silver nitrate matches the given value.
You can determine if a coin is not pure silver by calculating its density using the formula density = mass/volume. Compare this calculated density to the known density of pure silver (10.5 g/cm3). If the calculated density does not match the density of pure silver, then the coin is not pure silver.
The atomic number for Silver (Ag) on the periodic table is 47. The average atomic weight is about 107.87, showing that silver normally has more neutrons than protons. (If all silver atoms had equal neutrons and protons, it would have an atomic weight of about 94).
To find the mass of 3.30 x 10^23 atoms of silver, you need to know the molar mass of silver. The molar mass of silver is 107.87 g/mol. So, you would calculate the mass by multiplying the number of atoms by the molar mass. This would result in a mass of approximately 5.62 grams.
Divide the mass by the volume to calculate its density. If its density isn't the same as an equal amount of pure silver, the coin has some other metal in it.The density test can be fooled if the coin was adulterated with other metals that average out to the same density as silver, however.