Answer:
you just think it and you would make it.
Explanation:
its gonna be easy if you just think what would you do for it.☺
the balanced equation for the acid base reaction is as follows
NaOH + HCl ---> NaCl + H₂O
stoichiometry of NaOH to HCl is 1:1
the number of NaOH moles is - 0.139 mol/L x 0.0154 L = 0.00214 mol
the number of NaOH moles reacted = number of HCl moles reacted
therefore number of HCl moles reacted = 0.00214 mol
volume of HCl containing 0.00214 mol - 25.0 mL
number of HCl moles in 25.0 mL - 0.00214 mol
therefore number of HCl moles in 1000 mL - 0.00214 mol / 25.0 mL x 1000 mL/L
molarity of HCl is 0.0856 mol/L
concentration of HCl is 0.0856 M
TO be saturated you need an amount of solvent that will not dissolve anymore into the solution. So, the best answer from the list is C
There are approximately 160 grams in 1 mol of Fe2O3 molecules. Therefore, there would be 79/160= 0.49375 mols of Fe2O3 molecules in 79 grams. There are 5 atoms in total for each molecule of Fe2O3, therefore 79/160 * 5 = 79/32 = 2.46875 mols of atoms.
The relationship between independent and dependent variables is constant. The independent variables are not affected and do not change while dependent variables rely on something or a particular change.
Hope this helps and have a good day/night!
