Hello!
Molarity is defined as the number of moles of a substance that can be found in 1 liter of solution. That is expressed mathematically as
M=mol/LFor the FeCl₃ solution:

So, the concentration of this solution is
0,756 MHave a nice day!
The molecular mass of sucrose is 342.3<span> grams per mole (g/mol).</span>
From mole ratios, the mass ratio of different elements can be predicted. Also the volume can be predicted based on density for liquids and ideal gas law equation for gases. From the mole ratios, the empirical formula can be predicted, as well as the molecular formula given another data which is mass of the sample.
Answer:
Element X with atomic number 10 and atomic mass 21
Element Z with atomic number 10 and atomic mass 22
Explanation:
Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their various nuclei.
- Isotopes of an element have the same electronic configuration.
- They share the same chemical properties
- They only differ in their masses.
So, Element X and Z with atomic number 10 which is their number of electrons are isotopes. Their mass number, 21 and 22 differs.