Question

What is the of total mass mass of 2 moles of nitric acid?


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Answer 1

Answer:

I hope it helpful......

Answer 2

Mole is a standard scientific unit to measure atoms, molecules and other small entities in chemistry.

Explanation:

A mole is defined as that amount of the substance which has a mass equal to the gram atomic or gram molecular mass if the substance is molecular.

According to the question we have to find out the total mass of 2 moles of nitric acid⇒$2HNO_3$.

The formula mass of nitric acid is:- atomic mass of H + atomic mass of N + 3(atomic mass of O).

• Atomic mass of H= 1u
• Atomic mass of N=14u
• Atomic mass of 0=16u

The formula mass ⇒

 $1 + 14 + (3\times 16)\\15 + 48\\=63$

63 is for 1 mole of nitric acid, For 2 moles of nitric acid⇒

$2\times 63\\=126$

So, the answer is 126u.