Answer : The correct option is, (A) 2.92 g
Explanation :
Density : It is defined as the mass of a substance contained per unit volume.
Formula used :
\(Density=\frac{Mass}{Volume}\)
Given :
Density of nitrogen gas = \(1.17\times 10^{-3}g/cm^3\)
Volume of nitrogen gas = \(2500cm^3\)
Now we have to determine the mass of nitrogen gas.
By using formula, we get:
\(1.17\times 10^{-3}g/cm^3=\frac{Mass}{2500cm^3}\)
\(Mass=2.92g\)
The rule apply for the multiplication and division is :
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
In this problem, the least number of significant figures is 3. So, the answer will be in 3 significant figures.
Therefore, the mass of nitrogen gas is 2.92 grams
