Which of the following statements is/are correct for 80 g of oxygen?

The atomic mass of oxygen is 16 u.

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The molecular mass of oxygen is 32 u.

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The number of gram atoms is 5.

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The number of gram molecules is 10.

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Solution

The correct options are
A
The atomic mass of oxygen is 16 u.

B
The molecular mass of oxygen is 32 u.

C
The number of gram atoms is 5.

The atomic mass of oxygen is 16 u.
The molecular mass of oxygen = $2 \times$ 16 = 32 u

Given mass = 80 g
Number of gram atoms = $\frac{Given mass}{Gram atomic mass of oxygen}$ = $\frac{80}{16}$ = $5$
Number of gram molecules = $\frac{Given mass}{Gram molecular mass of oxygen}$ = $2.5$

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Similar questions

Which of the following has the largest number of Oxygen atoms-

(a)1 gram of Oxygen atoms

(b)1 gram of Oxygen molecule

SOLVE FOR (a),(b) and (c)

T h e n u m b e r o f o x y g e n a t o m s i n 20 g r a m s o f s u l p h u r t r i o x i d e i s t h e s a m e a s t h o s e p r e s e n t i n X g r a m s o f o z o n e . T h e a t o m i c m a s s o f s u l p h u r a n d o x y g e n a r e 32 u a n d 16 u r e s p e c t i v e l y . F i n d t h e v a l u e o f x .

if one mole of oxygen atom weights 16 grams,what is the mass (in grams) of one atom of oxygen?

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