How do you find the reaction of a mole?
Divide Grams by Grams per Mole
Divide the number of grams of each reactant by the number of grams per mole for that reactant. 50.0 g of Na are used in this reaction, and there are 22.990 g/mol. 50.0 ÷ 22.990 = 2.1749. 2.1749 moles of Na are used in this reaction.
What is the mole mole ratio and what is it used for?
Mole ratios allow comparison of the amounts of any two materials in a balanced equation. Calculations can be made to predict how much product can be obtained from a given number of moles of reactant.
What does KJ mol RXN mean?
The units for ΔHº are kiloJoules per mole, or kj/mol. ΔH and ΔHºrxn. Δ = represents the change in the enthalpy; (ΔHproducts -ΔHreactants) a positive value indicates the products have greater enthalpy, or that it is an endothermic reaction (heat is required)
How do you find the moles of a product formed?
In order to calculate the moles of a product, you must know the mass of the product, and its molar mass (g/mol), which is the mass of one mole of of the product. You then divide the mass of the product by its molar mass.
What is a mole in chemistry?
The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is “mol”. … Notice that the definition of the mole is an amount of substance. We will often refer to the number of moles of substance as the amount of the substance.
Which statement best describes a mole?
Which statement best describes a mole? It contains 6.02 x 10^23 particles of a given substance.
What is the mole ratio of CO2 to H2O?
The chemical formula tells us the mole ratio. CO2 = 1 CO2 molecule : 1 C atom : 2 O atoms. 1 C12H22O11 molecule: 12 O2 molecules : 12 CO2 molecules : 11 H2O molecules.
What is the mole mole ratio of NH3 and NH4 2SO4?
Answer: The balanced equation indicates that 2 moles of NH3 react to produce 1 mole of (NH4)2SO4. Because the reaction occurs at STP, 1 mole of NH3 gas occupies 22.4 L.