# 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, 6.02×1023.
• #### 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 H2O, and you want to convert it to moles. The molecular mass of H2O is 18g/mol.
• #### How do you determine the molecular formula?

1. Calculate the empirical formula mass. You determine this number by finding the mass of HO (1 hydrogen atom and 1 oxygen atom).
2. Divide the gram molecular mass by the empirical formula mass.
3. 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 H2O, and you want to convert it to moles. The molecular mass of H2O 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:
1. Balance the equation.
2. Convert units of a given substance to moles.
3. Using the mole ratio, calculate the moles of substance yielded by the reaction.
4. Convert moles of wanted substance to desired units.

Updated: 2nd October 2019