# How do you write a mole ratio?

Contents

## What is a mole ratio *?

The mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced equation.

## How do you find the mole ratio of a reaction?

Once you know the number of moles of each component of the compound, you divide each by the one with the lowest number and round to the nearest integer. The numbers are the mole ratios, and they appear as subscripts in the empirical formula.

1:2:3.

## How do you find the simplest molar ratio?

To find the simplest whole number ratio, divide each number by the smallest number of moles:

1. Sn: 0.664 / 0.664 = 1.00.
2. O: 1.33 / 0.664 = 2.00.

## How do you use molar ratio?

number of moles = mass/formula mass. The molar ratio from the balanced equation must be considered to tell us how many moles of aluminium will be released. To finish off the question, we must change one mole of aluminium into a mass. So, 55 g of aluminium oxide will produce 27 g of aluminium upon being electrolysed.

## How do you compute ratios?

How to calculate a ratio

1. Determine the purpose of the ratio. You should start by identifying what you want your ratio to show. …
2. Set up your formula. Ratios compare two numbers, usually by dividing them. …
3. Solve the equation. Divide data A by data B to find your ratio. …
4. Multiply by 100 if you want a percentage.
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## What is the mole ratio of iron?

The molar mass of Fe is 55.845 grams (1 mole Fe = 55.845 grams Fe). The molar mass of O2 is 2 x 16.00 or 32.00 grams (1 mole O2 = 32.00 grams O2). The mass of a mole of Fe2O3 is (2 x Fe) + (3 x Oxygen) = (2 x 55.845) + (3 x 16.00) = 159.69 grams (1 mole of Fe2O3 = 159.69 grams Fe2O3).