Question

calculate mass of 1.5 gm atom of ca (40)

Answer 1

I gm Atom=1mole i.e. 1.5gm atom =1.5 mole i.e. = 100 gm

Answer 2

Answer: The mass of 1.5 gm atom of Calcium is 60gm.

Explanation:

What is gram atom?

Gram atom refers to the quantity of an element whose mass is equal to the molar mass or atomic weight of the element. In other words it refers to one mole of the given element. The terms gm atom, gm ion, gm molecule all refer to a mole of the substance.

Thus in the given question, 1.5 moles of Calcium are present.

The formula required in the above question is,

Mass of given amount = Molar mass of element*Number of moles given

Molar mass of Calcium is given to be 40gm.

Calculation

Mass of calcium = 40*1.5

= 60gm

Thus, the mass of 1.5 gm atom of Calcium is 60gm.

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