The molar mass of Z-is 20 g- Find the mass of 1 atom of Z-2-65-10-23gm-3-32-10-23gm-5-32-10-23gm-4-32-10-23gm-

The correct option is B 3.32*10 23gm 1 mole = 6.022 × 10^23 atoms. Molar mass = 20 g So, 6.022 × 10^23 atoms of Z weigh 20 g 1 atom weighs 3.32 × 10^ 23 g. ...

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Standard IX

Chemistry

Mole Concept

The molar mas...

Question

The molar mass of Z is 20 g. Find the mass of 1 atom of Z.

2.65*10^-23gm

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3.32*10^-23gm

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5.32*10^-23gm

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4.32*10^-23gm

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Solution

The correct option is B
3.32*10^-23gm

1 mole = $6.022 \times 10^{23}$ atoms.

Molar mass = 20 g

So, $6.022 \times 10^{23}$ atoms of Z weigh 20 g

1 atom weighs $3.32 \times 10^{- 23}$ g.

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The molar mass of Z is 20 g. Find the mass of 1 atom of Z.

The correct option is B 3.32*10-23gm 1 mole = 6.022×1023 atoms. Molar mass = 20 g So, 6.022×1023 atoms of Z weigh 20 g 1 atom weighs 3.32×10−23 g.

The correct option is B
3.32*10^-23gm

1 mole = $6.022 \times 10^{23}$ atoms.

Molar mass = 20 g

So, $6.022 \times 10^{23}$ atoms of Z weigh 20 g

1 atom weighs $3.32 \times 10^{- 23}$ g.