Three chromium bromides are known: CrBr2, CrBr3, CrBr4.
* CrBr2: 247, 5985 mg of Cr per 1 g of bromide
* CrBr3: 179,9145 mg of Cr per 1 g of bromide
* CrBr4: 141,1209 mg of Cr per 1 g of bromide
This is some easy math: chromium (Cr, #24) has an atomic mass of 52 grams per mole (from the periodic table). According to the Avogadro constant, 1 mole of any substance contains 6.02x1023 representative particles. So, 52g of Cr is 1 mole, and contains 6.02x1023 atoms.
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One mole of gold has a greater mass than one mole of silver because gold has a higher atomic mass compared to silver. The atomic mass of gold is around 197 grams per mole, whereas the atomic mass of silver is around 108 grams per mole.
To find the number of moles in 260g of chromium, you need to divide the given mass by the molar mass of chromium. The molar mass of chromium is approximately 51.996 g/mol. Dividing 260g by the molar mass gives you about 5 moles of chromium.
It depends on the substance. A mole is just a unit of amount, 6.02 × 1023. So that means that one mole of atoms is 6.02 × 1023 atoms; likewise, one mole of cars is 6.02 × 1023 cars and one mole of rice is 6.02 × 1023 grains. A mole of cars has a different mass than a mole of rice, so until you define what you're measuring, this question cannot be answered.
This is some easy math: chromium (Cr, #24) has an atomic mass of 52 grams per mole (from the periodic table). According to the Avogadro constant, 1 mole of any substance contains 6.02x1023 representative particles. So, 52g of Cr is 1 mole, and contains 6.02x1023 atoms.
Chromium is a meta element. Atomic mass of it is 52.
chicken nuggets
One mole of gold has a greater mass than one mole of silver because gold has a higher atomic mass compared to silver. The atomic mass of gold is around 197 grams per mole, whereas the atomic mass of silver is around 108 grams per mole.
To find the number of moles in 260g of chromium, you need to divide the given mass by the molar mass of chromium. The molar mass of chromium is approximately 51.996 g/mol. Dividing 260g by the molar mass gives you about 5 moles of chromium.
It depends on the substance. A mole is just a unit of amount, 6.02 × 1023. So that means that one mole of atoms is 6.02 × 1023 atoms; likewise, one mole of cars is 6.02 × 1023 cars and one mole of rice is 6.02 × 1023 grains. A mole of cars has a different mass than a mole of rice, so until you define what you're measuring, this question cannot be answered.
This is the third element Lithium: 6.94 g is the mass of 1 mole Li. The mass in grams of one mole of any element is exactly its atomic mass (in a.m.u.)
Gold
The mass of one mole of substances
One mole of 12C has a mass of 12.00000 grams (exactly, by definition).One mole of 13C has a mass of 13.00335 grams.One mole of 14C has a mass of 14.00324 grams.One mole of natural carbon - i.e. a sample with the ratio of isotopes equal to that in nature - has a mass of 12.0107 grams.
HI, A MOLE IS MOLECULAR MASS. MOLECULAR MASS OF SODIUM IS 23. HENCE, 1.22 MOLE = 1.22*23 = 28.60
32 grams, you can find the mass of one mole of any element by looking at its atomic mass eg chlorine has Atomic mass of 35.5 so the mass of one mole of chlorine is 35.5 grams.