To convert between moles of one substance and moles of another substance, you need to use the balanced chemical equation and the concept of stoichiometry.

Here's how you can do it:

1. Start with a balanced chemical equation that relates the two substances you want to convert between. Make sure that the coefficients in the balanced equation represent the mole ratio between the two substances. For example, the equation for the reaction between hydrogen gas (H2) and oxygen gas (O2) to form water (H2O) is:

2 H2 + O2 → 2 H2O

This means that for every 2 moles of H2, we need 1 mole of O2 to react and produce 2 moles of H2O.

2. Identify the given quantity in moles for the substance you have. Let's say you have 3 moles of H2.

3. Use the mole ratio from the balanced equation to convert moles of the known substance (H2) to moles of the unknown substance (O2). In this case, the mole ratio is 2:1 (H2:O2). Therefore, you can set up the following proportion:

2 moles H2 / 1 mole O2 = 3 moles H2 / x moles O2

Solving for x, you get:

x = (1 mole O2 * 3 moles H2) / 2 moles H2
= 1.5 moles O2

So, 3 moles of H2 is equivalent to 1.5 moles of O2 according to the given balanced chemical equation.

4. Repeat the same process if you want to convert from moles of the unknown substance (O2) to moles of the known substance (H2). In this case, you would invert the mole ratio as follows:

1 mole O2 / 2 moles H2 = x moles O2 / 3 moles H2

Solving for x, you get:

x = (1 mole O2 * 3 moles H2) / 2 moles H2
= 1.5 moles O2

So, 1.5 moles of O2 is equivalent to 3 moles of H2 according to the given balanced chemical equation.

Got a question with my answer?

Message Me

Cheapmath.com is completely free!

Asking question is free. Getting answers is free.

+99

Continue