# What is the mole to mole ratio?

A

**mole ratio**is ?the**ratio**between the amounts in**moles**of any two compounds involved in a chemical reaction. The**mole ratio**may be determined by examining the coefficients in front of formulas in a balanced chemical equation. Also Known As: The**mole ratio**is also called the molar**ratio**or**mole-to-mole ratio**.A.

### How do you convert from moles to moles?

Avogadro's number is a very important relationship to remember: 1

**mole**= 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from**moles**to atoms, multiply the molar amount by Avogadro's number. To convert from atoms to**moles**, divide the atom amount by Avogadro's number (or multiply by its reciprocal).#### What is a mole conversion?

**Converting**from**moles**to volume (liters): Multiply your**mole**value by the molar volume constant, 22.4L.**Converting**from particles (atoms, molecules, or formula units) to**moles**: Divide your particle value by Avogadro's number, 6.02×10^{23}.#### How do you turn grams into moles?

Using a calculator, divide the number of**grams**by the molar mass. The result is the number of**moles**in your element or compound. For example, imagine you have 2 g of water, or H_{2}O, and you want to**convert**it to**moles**. The molecular mass of H_{2}O is 18g/mol.#### How do you determine the molecular formula?

- Calculate the empirical formula mass. You determine this number by finding the mass of HO (1 hydrogen atom and 1 oxygen atom).
- Divide the gram molecular mass by the empirical formula mass.
- Multiply each of the subscripts within the empirical formula by the number calculated in Step 2.

B.

### Why do you need to use moles to solve stoichiometry problems?

Big, because atoms and molecules are way too small to count, so

**we**mass large numbers of them instead, and**use**molar mass to convert to the NUMBER of**moles**of them. This number is then used in a ratio conversion based on the**mole**ratios in the balanced chemical equation.#### How can stoichiometry be useful?

**Stoichiometry**allows us to make predictions about the outcomes of chemical reactions. Predict the mass of a product of a chemical reaction if given the starting masses of reactants. Predict the volume of a gas which will be produced by a reaction if given the starting amounts of reactants.#### Why do you balance a chemical equation is needed in solving stoichiometric calculation?

**equations**in**solving stoichiometric**problems because the coefficients in a**balanced equation**tell us the ratio in which moles of one substance react with or form moles of another substance. 4.38 The steps involved in the mole method are as follows: 1.#### How do you convert grams to Mole?

Using a calculator, divide the number of**grams**by the molar mass. The result is the number of**moles**in your element or compound. For example, imagine you have 2 g of water, or H_{2}O, and you want to**convert**it to**moles**. The molecular mass of H_{2}O is 18g/**mol**.

C.

### What is the mole to mole factor?

The balanced equation for the reaction of interest contains the stoichiometric ratios of the reactants and products; these ratios can be used as conversion

**factors**for**mole**-to-**mole**conversions. Stoichiometric ratios are unique for each chemical reaction.#### Why is it useful to have a mole ratio?

**Mole ratios**are**important**because**mole ratios**allow you change**moles**of a substance to**moles**of another substance. The**mole ratio**is the magic that changes from A to B. The**mole ratios**come from the chemical formula or equation.#### Why are coefficients used in mole ratios instead of subscript?

1 = 2 oxygen atoms. Remember,**coefficients**in a chemical equation indicate how many molecules of each type take part in the reaction.**Subscripts**are part of the chemical formula for reactants or products and cannot be changed to balance an equation. Changing a**subscript**changes the substance represented by the formula.#### How do you find moles in stoichiometry?

**Almost all stoichiometric problems can be solved in just four simple steps:**- Balance the equation.
- Convert units of a given substance to moles.
- Using the mole ratio, calculate the moles of substance yielded by the reaction.
- Convert moles of wanted substance to desired units.

Updated: 2nd October 2019