It will be used 1.95 grams of the reactant in the reaction.
To calculate the density of a given substance, use the following expression:
[tex]d = \frac{m}{v}[/tex]
Thus, having the values of volume and density, just apply the formula above to find the value of mass, so that:
[tex]0.975 = \frac{m}{2}[/tex]
[tex]m= 1.95 grams[/tex]
So, it will be used 1.95 grams of the reactant in the reaction.
Learn more about density in: brainly.com/question/952755