Question

What is the mass in grams of $7.20mol$ of antimony?

Answer 1

Hint: The mass is a proportion of the measure of issue in an item. Mass is normally estimated in grams or kilograms. Mass estimates the amount of issue paying little mind to the two areas known to man and the gravitational power applied to it. An article's mass is steady in all conditions; balance this with its weight, a power that relies upon gravity.

Complete step by step answer:
We have to see that the atomic equation for antimony is $Sb$ . Then the SI base unit for measure of substance is the mole. One mole is equivalent to one moles Antimony, or $121.76g$ .
We have to find out the mass of antimony in $7.20mol$ .
So that, we have to use the following expression,
$n = \dfrac{m}{M}$
Where,
n is the number of moles, m is the mass and M is the molar mass.
In the given details,
The number of moles = $7.20mol$ .
The molar mass of antimony = $121.76g/mol$ .
To, calculate the mass of antimony.
Rewrite the above expression,
$m = n \times M$
Applying given values in the above equation,
$m = 7.20mol \times 121.76g/mol$
On simplification we get,
$m = 876.672g$

Hence, the mass of antimony is $876.672g$ .

Note: The molar mass of a synthetic compound is characterized as the mass of an example of that compound separated by the measure of substance around there, estimated in moles. It is the mass of one mole of the substance or $6.022 \times {10^{23}}$ particles, communicated in grams. The molar mass is a mass, not atomic, property of a substance. The molar mass is a normal of numerous occasions of the compound, which frequently fluctuate in mass because of the presence of isotopes.