Atomic mass is the same as the grams per mole. 2.98x10²² is 0.0495 mol (2.98e22 ÷ 6.02e23). If we have 4 g/0.0495 mol, that's 80.81 g/mol, so the atomic mass is 80.81 amu. Make sense?
In neutralisation reactions, acid and base reacts. Acid dissociates to give out H⁺ ions and bases dissociate to give out OH⁻ ions. These H⁺ ions and OH⁻ ions react to form H₂O molecules.
and the anion from the acid dissociation and cation from base dissociation form salts.
therefore in a neutralisation reaction acid reacts with base to form water and the corresponding salt
Mg(OH)₂ + 2HNO₃ ---> Mg(NO₃)₂ + 2H₂O
HCl + NaOH ---> NaCl + H₂O
Answer:
Explanation:
Hello,
In this case case, the Dalton's law is useful to compute the total pressure in terms of the partial pressure of the present gases:
Best regards.