First you have to convert mmol to mol,
0.0102/1000=1.02*10^-5 mol.
Second, multiply the mol by avogadro's number (6.022*10^23)
(1.02*10^-5)*(6.022*10^23)=6.14244*10^18
Third and last, Round to 3 sig figs
6.14*10^18
To find the mass of 3.34 moles of gold atoms, you need to multiply the number of moles by the molar mass of gold. The molar mass of gold is 196.97 g/mol. Therefore, the mass of 3.34 moles of gold atoms is 3.34 moles * 196.97 g/mol = 658.5 grams.
6.02 x 10 ^23 It's the same number for 1 mol of anything.
To find the number of gold atoms, you first need to calculate the number of moles of gold using the molar mass of gold (197 g/mol). Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms. First, convert the weight of the necklace (12.7g) to moles using the molar mass of gold. This will give you the total number of atoms in the necklace.
If 3,6 x 10-5 is grams the number of atoms is 1,1.10e17.
To find this, you need to first calculate the molar mass of gold (Au), which is 196.97 g/mol. Next, you convert the given mass (5 grams) to moles by dividing by the molar mass. Then, you use Avogadro's number (6.022 x 10^23) to convert moles to atoms. In this case, there are approximately 6.022 x 10^22 atoms in 5 grams of gold.
To find the mass of 3.34 moles of gold atoms, you need to multiply the number of moles by the molar mass of gold. The molar mass of gold is 196.97 g/mol. Therefore, the mass of 3.34 moles of gold atoms is 3.34 moles * 196.97 g/mol = 658.5 grams.
6.02 x 10 ^23 It's the same number for 1 mol of anything.
To find the number of atoms in 100 grams of gold, you would first calculate the number of moles using the molar mass of gold (197 grams/mol). Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms. So, approximately 3.01 x 10^23 atoms of gold are present in 100 grams.
The formula unit for gold is a single atom, and the atomic weight of gold is about 197. Therefore, the number of atoms in 3.50 g of gold is Avogadro's Number X (3.50/197) or about 1.84 X 1022.
To find the number of gold atoms, you first need to calculate the number of moles of gold using the molar mass of gold (197 g/mol). Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms. First, convert the weight of the necklace (12.7g) to moles using the molar mass of gold. This will give you the total number of atoms in the necklace.
If 3,6 x 10-5 is grams the number of atoms is 1,1.10e17.
To find this, you need to first calculate the molar mass of gold (Au), which is 196.97 g/mol. Next, you convert the given mass (5 grams) to moles by dividing by the molar mass. Then, you use Avogadro's number (6.022 x 10^23) to convert moles to atoms. In this case, there are approximately 6.022 x 10^22 atoms in 5 grams of gold.
1. Three moles of sodium contain 18,06642387.1023 atoms. 2. The mass of three moles of sodium is 68,97 grams.
Well, firstly you need to know if it is pure gold. Assuming that it is, convert the grams to moles 19.7g Au x 1molAu/197.0gAu = 0.1moles Au And then, to get the number of atoms in 0.1 moles of gold, multiply it by Avogadro's number, 6.22x10^23 atoms per mole 0.1mol Au x 6.22x10^23atoms/mole = 6.22x10^22
1. Three moles of sodium contain 18,06642387.1023 atoms. 2. The mass of three moles of sodium is 68,97 grams.
To find the number of moles of gold, first calculate the molar mass of gold, which is 197 g/mol. Then, divide the given mass of gold by the molar mass to find the number of moles. In this case, 3.60x10-5g ÷ 197 g/mol ≈ 1.83x10-7 moles of gold.
Atomic Mass of Na: 23.0 grams1.50 moles × (6.02 × 1023 atoms) = 9.03 × 1023atoms