In a chemical reaction, reactants that are not used up when the reaction is complete are called excess reagents. To calculate the excess reagent, you need to find molecular weight then work out molarity.
To determine how many grams of the excess reactant will remain after the reaction of 12.5 g of CaO and 75.0 g of HClO4, we can follow these steps:Step 1: Write the balanced chemical equation The balanced reaction between calciu
In order to calculate this experimentally you have to monitor either the concentration of the reactant or product as a function of time. Once you have measurements at different times you can then plot these values and find the instantaneous rate of the reaction or the slope of the line. Pret...
How do you do stoichiometry limiting reactant problems? What is the mass of a liquid with a density of 2.12 g/mL and a volume of 53.0 mL (to the nearest gram)? Calculate the number of moles of solute in 8.00 x 102 mL of a 0.750 M HCl solution. ...
Building Blocks Of Matter: All matter is made up of tiny building blocks called atoms. Atoms are bonded together to form molecules and compounds, which make up everything that exists in the universe. The amount of matter in a substance is directly related to its mass. ...
To find the percent yield the actual yield is divided by the theoretical yield the resulting answer is multiplied by 100. What is the formula for the theoretical yield? We calculate the theoretical yield by taking the given mass of the reactants and multiplying it by the molar mass of the...
The enthalpy change for the following reaction is -891kJ: CH_4+2O_2= CO_2 + 2H_2O What is the enthalpy change when 2.50 g of methane is burned in excess oxygen? How to calculate the energy change in the reaction N_2(g) + 3H_2(g) rightarrow 2NH_3(g)?
In the chemical reaction, compounds break down to form various gases. Thereactants(the original chemical compounds) have a lot of energy stored up as chemical bonds between differentatoms. When the compound molecules break apart, theproducts(the resulting gases) may use some of this energy ...
It is possible to express the combustion event as a balance of input reactants: fuel, oxygenates, and diluents (for example gasoline mixed with air) to the resultant combustion products (i.e. the composition of exhaust gas). Note that this is a chemical balance, meaning that every element...
K is the equilibrium constant, a value that can be used to mark the concentrations of reactants and products that have reached a state of equilibrium where the reaction stops progressing. TL;DR (Too Long; Didn't Read) The above situations assume that the cell potential is positive meaning ...