(a) The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
(b) What is the value of Avogadro's number?
(c) What is the value of molar volume of a gas at STP?

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Solution

(a) The relative atomic mass of Cl atom is 35.5 a.m.u. This means that Cl atom is 35.5 times heavier than 1/12 times the mass of an atom of carbon-12.
(b) The value of Avogadro's number is 6.023 $\times$ 10²³.
(c) The value of molar volume of a gas at STP is 22.4 litres.

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(a) The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement. (b) What is the value of Avogadro's number? (c) What is the value of molar volume of a gas at STP?

(a) The relative atomic mass of Cl atom is 35.5 a.m.u. This means that Cl atom is 35.5 times heavier than 1/12 times the mass of an atom of carbon-12. (b) The value of Avogadro's number is 6.023 × 1023. (c) The value of molar volume of a gas at STP is 22.4 litres.

(a) The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
(b) What is the value of Avogadro's number?
(c) What is the value of molar volume of a gas at STP?

(a) The relative atomic mass of Cl atom is 35.5 a.m.u. This means that Cl atom is 35.5 times heavier than 1/12 times the mass of an atom of carbon-12.
(b) The value of Avogadro's number is 6.023 $\times$ 10²³.
(c) The value of molar volume of a gas at STP is 22.4 litres.