Calculate the molecular mass of nitric acid hno3

Asked by admin @ 29/08/2021 in Chemistry viewed by 322 People

Calculate the molar mass of nitric acid HNO3 (H=1,N=14,O=16)

Answered by admin @ 29/08/2021

The molar mass of $\bold{HNO_3}$ is 63 u.

Explanation:

The "molar mass" of any substance indicates the addition of atomic masses of constituent atoms. In other words, the atomic mass must be added to get the "molar mass" of substance.

Hence, to calculate the molar mass, we must know the atomic masses of component atoms. Here, for the molar mass of nitric acid:

Atomic mass of H = 1.001 u
Atomic mass of N = 14.01 u
Atomic mass of O = 16.0 u

Hence, molar mass of $HNO_3$ will be:

$(1 \times 1.001)+(1 \times 14.01)+(3 \times 16.0)=63.01 \ u$

Calculate the mass of 6.9 moles of nitrous acid hno2

Asked by admin @ 29/10/2021 in Chemistry viewed by 364 persons

The value of Ka for nitrous acid (HNO2) at 25 ∘C is 4.5×10−4 .a. Write the chemical equation for the equilibrium that corresponds to Ka1. H+(aq)+NO−2(aq)⇌HNO2(aq)2. HNO2(aq)⇌H+(aq)+NO−2(aq)3. HNO2(aq)⇌H−(aq)+NO+2(aq)4. HNO2(aq)+H+(aq)⇌H2NO+2(aq)5. HNO2(aq)+H−(aq)⇌H2NO+2(aq)b. …

Calculate the molecular mass of nitric acid hno3

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