Question

What is the mole ratio of d to a in the generic chemical reaction 2a+b-- c+3d?

Answer 1

The mole ratio of d to a in the given chemical equation is $\boxed{3:2}$.

Further explanation:

Stoichiometry

It is used to measure the quantitative relationships between various species involved in the chemical reaction. It is used to determine the amounts of reactants as well as products that are required in the chemical reaction. The stoichiometry of the reaction is useful if it is assumed that the chemical reaction is going for completion.

A general balanced chemical reaction is expressed by the following equation:

 ${\text{A}} + 2{\text{B}} \to 3{\text{C}}$

Here,

A and B are reactants.

C is the product.

The stoichiometry of the above reaction indicates that one mole of reactant A reacts with two moles of reactant B to produce three moles of product C. So the stoichiometric amount or ratio between A and B is 1:2, that between A and C is 1:3 and that between B and C is 2:3.

The given chemical reaction is as follows:

 $2{\text{a}} + {\text{b}} \to {\text{c}} + 3{\text{d}}$

According to the stoichiometry of the above reaction, it is clear that two moles of a react with one mole of b and one mole of c and two moles of d are formed. The stoichiometric ratio between a and b is 2:1, that between b and c is 1:1, that between b and d is 1:3, that between c and d is 1:3, that between a and d is 2:3.

Therefore the mole ratio of d to a in the given chemical equation is 3:2.

Learn more:

1. Calculate the moles of chlorine in 8 moles of carbon tetrachloride: brainly.com/question/3064603
2. Calculate the moles of ions in the solution: brainly.com/question/5950133

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Stoichiometry

Keywords: stoichiometry, reactant, product, mole ratio, 3:2, A, B, C, 2a, b, c, 3d.

Answer 2

Answer:  D : A is 3 : 2.

Explanation:

The law of definite proportion is being used here. The law states that a given compound always has the same proportion of its constituent elements by mass.  

2a + b = c + 3d

This actually means that, two moles of “a” react with a mole of “b” to produce a mole of “c” and 3 moles of “d”

Using the concept of stoichiometry coefficients of d and a  

d:a = 3:2