Answer:
Number of moles of C₂H₂ = 13.3 mol
Number of moles of Co = 0.92 mol
Explanation:
Given data:
Number of molecules of C₂H₂ = 7.98 ×10²⁴
Number of moles of C₂H₂ = ?
Mass of Co = 25.8 g
Number of moles of Co = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For C₂H₂:
1 mol = 6.022 × 10²³ molecules
7.98 ×10²⁴ molecules × 1 mol / 6.022 × 10²³ molecules
1.33×10¹ mol
13.3 mol
For Co:
Number of moles = mass/ molar mass
Number of moles = 25.8 g/ 28 g/mol
Number of moles = 0.92 mol
A proton is a positively charged particle found within the nucleus of an atom, a neutron carries no charge and is also found in the nucleus. An electron is a very small negatively charged particle found in the outer "shells" or orbitals of the atom.
Answer:
349.503 g
https://www.convertunits.com/from/moles+Copper/to/grams
here is a link, you can convert moles of copper to grams here
Explanation:
protons, neutrons and electrons
Answer:
Decrease the volume to increase pressure and to increase concentration
Explanation:
A gaseous reaction is affected by the volume of the reactants. To increase the rate of the forward reaction, we need to ensure that the volume of the reactants is manipulated in such a way that the forward reaction is favored.
Thus, when the volume of reactants is decreased, the pressure increases.This increase in pressure has the same effect as increase in concentration. Hence, the rate of forward reaction increases.