# What mass of magnesium contains the same number of atoms?

## What mass of magnesium contains the same number of atoms?

3 g of magnesium would contain the same number of moles of atoms, and therefore the same number of atoms, as 7 g of iron.

### What is the atomic mass of calcium?

40.078 u
Calcium/Atomic mass

#### What mass of carbon would have the same number of atoms as 1.0 GH?

atoms of carbon. Again, we can conclude that 16.0g of oxygen contains exactly the same number of atoms as 12.0g of carbon, which in turn is the same number of atoms as 1.0g of hydrogen.

Which of the following contains same number of atoms as 20 gram of calcium?

The Number of atoms in 20 grams of calcium is equal to 8 grams of methane. Hence, the correct option is B.

Which one of the following contains the same number of atoms as 12 gram of magnesium?

(C) 24gram of carbon, is the correct answer..

## How do you find the atomic mass of calcium?

The atomic mass is usually listed underneath the chemical symbol. The units associated with molar mass is grams per mole ( gmol ). Therefore, the atomic mass of calcium (Ca) is 40.08 g/mol.

### What mass of Au contains the same number of atoms as 9.0 g of Al?

65 g
9.0 g Al contains 2.0×1023atoms Al . 2.0×1023atoms Au has a mass of 65 g .

#### What mass of silver contains the same number of atoms in 12g of carbon?

107
Thus, in order to have the same number of atoms of silver we need a mass of carbon that is 107/12 times its mass. Since we have 12 g of carbon, we have 107/12 x 12 = 107 g silver….Lecture Notes.

1 11 Na 22.990 12 Mg 24.305 3 4 5

Is the number of atoms of MG the same as CA?

The number of atoms of Mg should be the same as the number of atoms of Ca, so: You can also eliminate the step of converting to atoms, as a mol of any substance contains 6.022 ⋅ 1023 particles of that substance

What is the molar mass of calcium in grams?

Now , the molar mass of calcium is 40 gram and it contains NA atoms so to contain 6.022*10^22 atoms of Ca mass should be 40/10 =4 grams. Hope you understood it. Support your mitochondria.

## How is the mass of an element related to a mole?

The mass of an atom in amu is numerically the same as the mass of one mole of atoms of the element in grams. One atom of sulfur has a mass of 32.07 amu; one mole of S atoms has a mass of 32.07 g. Concept.The relationand molar mass2 between molecular (formula) mass

### How many molecules are in a mole of carbon 12?

• SI def.: the amount of a substance that contains the same number of entities as there are atoms in 12 g of carbon-12. • Exactly 12 g of carbon-12 contains 6.022 x 10 23 atoms. • One mole of H. 2. O molecules contains 6.022 x 10 23 molecules.