Osolutie de 0.01m hcl este diluata cu apa la un factor de dilutie de 100.
1.concentratia ionilor hidroniu scade de la 10 la -2 m la 10 la -4 m.
2. concentratia ionilor hidroxil nu se modifica.
3. ph solutie creste cu 2
4. poh scade cu 4.
a-1,2,3 sunt corecte
b-1,3 sunt corecte
c-2,4 corecte
d-4 corect
e-toate

Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature