Your question: What is the number of moles in 36 grams of Be?

What is the number of moles of beryllium in 36 grams of Be?

The unit is meant by mole. Avogadro’s number =6.022×1023. Thus, number of beryllium atoms =36g9.012gmol−1×6.022×1023=2.4×1024.

What is the number of moles in beryllium?

Ex. Beryllium (atomic number 4) has a molar mass of 9.012 g/mol. This means that every mole (6.22×1023 atoms of Beryllium) if gathered together on a triple beam balance would have a mass of 9.012g.

What gas occupies 22.4 at STP?

One mole of oxygen gas occupies 22.4 l volume at STP.

What is the mole of H2O?

The average mass of one H2O molecule is 18.02 amu. The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol.

What will be the number of particles in 36 g of carbon?

Thus, 3 moles of Carbon-12 will contain an equal number of Carbon atoms as 36 g of Carbon-12. The correct choice is c. 3 moles. 3 m o l e s .

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How many moles is 36 grams of water?

∴ 36g of water is equal to 2 mol.

How many moles of C are in 75 g of C?

75 g of C 0.25 mole of C_2H_6 88 g of CO_2.

How many grams are in a mole?

The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.