Answer:
Four different HCl molecules are possible.
Explanation:
Mass of 2-H isotope = 2 amu
Mass of 3-H isotope = 3 amu
Mass of 35-Cl isotope = 35 amu
Mass of 37-Cl isotope = 37 amu
Different HCl molecules possible are:
1)
Mass of = 2 amu + 35 amu = 37 amu
2)
Mass of = 3 amu + 35 amu = 38 amu
3)
Mass of = 2 amu + 37 amu = 39 amu
4)
Mass of = 3 amu + 37 amu = 40 amu
Answer:
Mole fraction = 0,0166
Explanation:
Mole fraction is defined as mole of a compound per total moles of the mixture. In the solution, the solute is fructose and the solvent is water. That means you need to find moles of fructose and moles of water.
The molecular mass of fructose is 180,16g/mol and mass of water is 18,02 g/mol. Using these values:
91,7g fructose × (1mol / 180,16g) = <em>0,509 moles of fructose</em>
545g water × (1mol / 18,02g) = <em>30,24 moles of water</em>
Thus, mole fraction of fructose is:
<em>Mole fraction = 0,0166</em>
I hope it helps!
