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What is the total number of moles of electrons lost by the copper as it completely reacts with 8 moles of nitric acid?
For the reaction between copper and nitric acid, the balanced equation is: 3Cu + 8HNO3 -> 3Cu(NO3)2 + 2NO + 4H2O Since each mole of Cu loses 2 moles of electrons, and there are 3 moles of Cu in the balanced equation, the total number of moles of electrons lost by Cu is 6 moles (3 moles of Cu x 2 moles of electrons/mole of Cu = 6 moles of electrons).
Can you count the number of atoms in a chemical equation?
Yes, you can count the number of atoms in a chemical equation by taking into account the subscripts of each element within the formula. The subscripts represent the number of atoms of each element present in the molecule. By adding up the total number of each atom on both sides of the equation, you can determine the total number of atoms in the chemical equation.
What is the unit of mole fraction?
Mole fraction is dimensionless. It's the amount of moles of species "A" divided by the total amount of moles in the mixture. So "mole A / mole total" equals "dimensionless". To add clarity in the use of mole fractions, one could add as "unit" mole A / mole "mixture".
Where does the mole ratio between two chemicals come from?
The mole ratio between two chemicals comes from the balanced chemical equation for the reaction involving those chemicals. It is determined by the coefficients in front of each chemical in the balanced equation and represents the ratio of moles of one substance to another that are involved in the reaction.
What is the total number of atoms in a sample of cocaine hydrochloride C17H22ClNO4 of mass 24.5 mg?
To find the total number of atoms in a sample of cocaine hydrochloride, you need to calculate the number of moles using the formula: moles = mass (in grams) / molar mass. Then, you multiply the number of moles by Avogadro's number (6.022 x 10^23) to get the total number of atoms.
Does the total number of moles reactants necessarily equal the total number of moles of product?
No. Take the microbial hydrogen mechanism as an example:4H2 + CO2 --> CH4 + 2H2O5 moles of reactants on the left converts to 3 moles of products on the right. The total number of moles of each type of atom does balance however.
What is the total number of moles of electrons lost by the copper as it completely reacts with 8 moles of nitric acid?
For the reaction between copper and nitric acid, the balanced equation is: 3Cu + 8HNO3 -> 3Cu(NO3)2 + 2NO + 4H2O Since each mole of Cu loses 2 moles of electrons, and there are 3 moles of Cu in the balanced equation, the total number of moles of electrons lost by Cu is 6 moles (3 moles of Cu x 2 moles of electrons/mole of Cu = 6 moles of electrons).
What equation is used to determine total cost?
The equation used to determine total cost is as follows: Total Cost = Fixed Cost + (Average Variable Cost) x Output. The equation to find total cost of a number ("q') of units is: C(q)= 100 + 2q.
How do you count the number of ions in a equation?
To count the number of ions in an equation, first identify the ions present in each compound. Then, determine the number of each type of ion by looking at the subscripts in the chemical formula. Finally, multiply the number of ions by the coefficient (if present) to get the total number of ions in the equation.
What is the total number of atoms in 3.5 moles of calcium?
The total number of atoms in 3.5 moles of calcium is 21,0774929995.10e23.
Explain how to count atoms when coefficient are present?
To count atoms when coefficients are present in a chemical equation, first identify the coefficients, which indicate the number of molecules or moles of a substance. Multiply the coefficient by the subscript of each element in the compound to determine the total number of atoms for that element. If there are no subscripts, assume the subscript is 1. Finally, sum the total counts for each element across all compounds in the equation.
What information do you need to determine how a change in pressure will affect the equilibrium of a reaction?
The total number of moles of gas on each side of the reaction.
Can you count the number of atoms in a chemical equation?
Yes, you can count the number of atoms in a chemical equation by taking into account the subscripts of each element within the formula. The subscripts represent the number of atoms of each element present in the molecule. By adding up the total number of each atom on both sides of the equation, you can determine the total number of atoms in the chemical equation.
What is the unit of mole fraction?
Mole fraction is dimensionless. It's the amount of moles of species "A" divided by the total amount of moles in the mixture. So "mole A / mole total" equals "dimensionless". To add clarity in the use of mole fractions, one could add as "unit" mole A / mole "mixture".
How is the number of moles determined from a known mass?
Number of moles = Total mass/Molar mass
What describes the number of moles of solute over the total number of moles in a solution?
This is the molar fraction.
Are moles conserved in a balanced chemical equations?
Yes, moles are conserved in a balanced chemical equation according to the law of conservation of mass. This means that the total number of moles of each element involved in a chemical reaction remains constant before and after the reaction.
